Air Lift RIDE CONTROL KIT 59516Air LiftOriginal price was $590.99. Current price is $428.99.In Stock
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1969 - 1972 Chevrolet Blazer
Confirmed to Fit
1973 - 1974, 1988 - 1991 Chevrolet Blazer
Confirmed to Fit
1988 - 1998 Chevrolet C1500
Confirmed to Fit
1975 - 1986 Chevrolet K10
Confirmed to Fit
1973 - 1974 Chevrolet K10 Pickup
Confirmed to Fit
1988 - 1998 Chevrolet K1500
Confirmed to Fit
1975 - 1978, 1980 - 1986 Chevrolet K5 Blazer
Confirmed to Fit
1999 - 2006 Chevrolet Silverado 1500
Confirmed to Fit
2007 Chevrolet Silverado 1500 Classic
Confirmed to Fit
2001 - 2003, 2005 Chevrolet Silverado 1500 HD
Confirmed to Fit
1975 - 1979, 1984 - 1989 Dodge D100
Confirmed to Fit
1969 - 1974 Dodge D100 Pickup
Confirmed to Fit
1977 - 1993 Dodge D150
Confirmed to Fit
1974 Dodge D300 Pickup
Confirmed to Fit
1987 - 2004 Dodge Dakota
Confirmed to Fit
1994 - 2001 Dodge Ram 1500
Confirmed to Fit
1974 - 1993 Dodge Ramcharger
Confirmed to Fit
1975 - 1977, 1986 - 1989 Dodge W100
Confirmed to Fit
1969 - 1974 Dodge W100 Pickup
Confirmed to Fit
1977 - 1993 Dodge W150
Confirmed to Fit
1980 - 1996 Ford Bronco
Confirmed to Fit
1984 - 1990 Ford Bronco II
Confirmed to Fit
1965 - 1983 Ford F-100
Confirmed to Fit
1975 - 2003 Ford F-150
Confirmed to Fit
2004 Ford F-150 Heritage
Confirmed to Fit
1988 - 1998 GMC C1500
Confirmed to Fit
1998 GMC C3500
Confirmed to Fit
1970 - 1972 GMC Jimmy
Confirmed to Fit
1973 - 1987, 1989 - 1991 GMC Jimmy
Confirmed to Fit
1975 - 1978 GMC K15
Confirmed to Fit
1974 GMC K15/K1500 Pickup
Confirmed to Fit
1979 - 1986, 1988 - 1998 GMC K1500
Confirmed to Fit
1999 - 2006 GMC Sierra 1500
Confirmed to Fit
2006 GMC Sierra 1500
Confirmed to Fit
Confirmed to Fit
2001 - 2003, 2005 - 2006 GMC Sierra 1500 HD
Confirmed to Fit
2007 GMC Sierra 1500 HD Classic
Confirmed to Fit
1987 GMC V1500
Confirmed to Fit
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RideControl Leaf spring leveling kit.
Offering up to 2,000 pounds of load-leveling capacity, Air Lift's RideControl kit will make towing and hauling with your Chevy, GMC, Dodge, and Ford 1/2-ton pickups and SUVs a comfortable and stress-free experience. For frequent use, our fully-adjustable, industry leading air springs are the perfect partner for your vehicle, eliminating any issues that you might face. The RideControl kit helps to eliminate problems frequently faced when towing and hauling, such as squat, poor headlight aim, trailer sway, body roll, and bottoming out. With the added stability and weight-distribution that air springs provide, you can haul safely, knowing that you have optimal braking and steering control. With the ability to adjust the air pressure from 5-100 PSI, the solution is perfect for any leaf-sprung 1/2-ton or mini pickup (Note: Do not exceed vehicle's gross vehicle weight rating (GVWR)). Each kit comes complete with all the parts needed for a successful installation, including two air springs, brackets, air lines, and necessary hardware. All parts are created with rugged, durable components, including end caps made of an ultra high-strength nylon composite formula, strong as steel but much lighter and corrosion proof. As the leader in air suspension products for more than 70 years, Air Lift is committed to delivering quality load support parts that last. To ensure the highest quality, longevity, and customer satisfaction, the key suspension components, including the air springs and all hardware, have all been torture-tested to 1 million cycles on our hydraulic test rig. With a lifetime warranty and 60-Day Ride Satisfaction Guarantee -- not to mention the Air Lift reputation for great customer service and technical support, should you run into any snags in the installation process -- you can purchase this kit with peace of mind. Installing the kit is a simple process, requiring only common hand tools and no frame drilling.
Air Lift Company has developed dependable air spring suspension products since our inception in 1949. Our original product, a rubber air spring inserted into a car’s factory coil spring, was created and patented in 1950. We’ve come a long way since 1949 and are proud to be a dedicated suspension specialist company.
Today, Air Lift load support products are sold worldwide and are engineered to fit over 540 vehicles. Our extensive product line offers air helper springs for trucks, RVs, SUVs, CUVs, and vans, as well as the most technologically advanced on-board air compressor systems for on-the-go air spring control.
Air Lift leads the industry in no-drill applications – kits that bolt onto your vehicle’s frame, speeding the installation process. Our teams work constantly to bring innovative products to you and upgrade existing products with the latest technology.
All of our efforts are spent ensuring your safety and comfort by designing, engineering, and manufacturing the highest quality suspension products. We are a family-owned business based in Lansing, Michigan, and make your family and cargo’s safety our top priority.
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38 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 1969 - 1972 | Chevrolet Blazer | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1973 - 1974, 1988 - 1991 | Chevrolet Blazer | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1988 - 1998 | Chevrolet C1500 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1975 - 1986 | Chevrolet K10 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1973 - 1974 | Chevrolet K10 Pickup | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1988 - 1998 | Chevrolet K1500 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1975 - 1978, 1980 - 1986 | Chevrolet K5 Blazer | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1999 - 2006 | Chevrolet Silverado 1500 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 2007 | Chevrolet Silverado 1500 Classic | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 2001 - 2003, 2005 | Chevrolet Silverado 1500 HD | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1975 - 1979, 1984 - 1989 | Dodge D100 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1969 - 1974 | Dodge D100 Pickup | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1977 - 1993 | Dodge D150 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1974 | Dodge D300 Pickup | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1987 - 2004 | Dodge Dakota | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1994 - 2001 | Dodge Ram 1500 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1974 - 1993 | Dodge Ramcharger | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1975 - 1977, 1986 - 1989 | Dodge W100 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1969 - 1974 | Dodge W100 Pickup | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1977 - 1993 | Dodge W150 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1980 - 1996 | Ford Bronco | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1984 - 1990 | Ford Bronco II | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1965 - 1983 | Ford F-100 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 1975 - 2003 | Ford F-150 | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
| 2004 | Ford F-150 Heritage | Does not fit vehicles with in: bed hitch Requires 6 in. Between Tire And Frame |
The Air Lift RIDE CONTROL KIT 59501 (Part #BBCG59501) fits 1970-1971, 1973-1991 Chevrolet Blazer models. The 2007 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the Air Lift RIDE CONTROL KIT 59501 (Part #BBCG59501) is designed to fit the 1970-1971, 1973-1991 Chevrolet Blazer.
The Air Lift RIDE CONTROL KIT 59501 (Part #BBCG59501) fits the following vehicles: 1970-1971, 1973-1991 Chevrolet Blazer; 1989-1998 Chevrolet C1500; 1975-1986 Chevrolet K10; 1973-1974 Chevrolet K10 Pickup; 1988-1998 Chevrolet K1500; 1975-1986 Chevrolet K5 Blazer; 1999-2006 Chevrolet Silverado 1500; 2007 Chevrolet Silverado 1500 Classic; Chevrolet Silverado 1500 HD; 1975-1989 Dodge D100; 1969-1974 Dodge D100 Pickup; 1977-1993 Dodge D150; 1974 Dodge D300 Pickup; 1988-2004 Dodge Dakota; 1994-2001 Dodge Ram 1500; 1974-1993 Dodge Ramcharger; 1975-1989 Dodge W100; 1969-1974 Dodge W100 Pickup; 1977-1993 Dodge W150; 1980-1996 Ford Bronco; Ford Bronco II; 1965-1983 Ford F-100; 1975-2003 Ford F-150; 2004 Ford F-150 Heritage; 1988-1998 GMC C1500; 1998 GMC C3500; 1970-1991 GMC Jimmy; 1975-1978 GMC K15; 1974 GMC K15/K1500 Pickup; 1979-1998 GMC K1500; 1999-2006 GMC Sierra 1500; 2007 GMC Sierra 1500 Classic; GMC Sierra 1500 HD; 2007 GMC Sierra 1500 HD Classic; 1987 GMC V1500. Always verify your specific year, make, and model before ordering.
The Air Lift RIDE CONTROL KIT 59501 (Part #BBCG59501) Typical installation time is 2 Hours Or Less. Basic hand tools are typically all you need.
The RideControl air spring kit is a load-leveling suspension system that uses sleeve-style air bags to provide up to 2,000 pounds of load-leveling support. Each air spring is rated at a maximum of 100 p.s.i. The kit is designed to help level your vehicle when carrying cargo or passengers, improving ride quality and handling. The air springs are manufactured like tires with layers of rubber and cords that control expansion and direct it in one direction.
No. If you have a 1997–2002 Ford F-150 short box extended cab with a Reese style 5th wheel hitch installed, you must use Air Lift kit #59542 instead of kit 59501, or contact Air Lift customer service at (800) 248-0892 to request bracket kit #26270.
The kit is compatible with 1993 and newer Dodge 4WD pickups; 1987 and older Chevrolet/GMC 4WD pickups; 1988–1998 Chevrolet/GMC; 1999–2007 Silverado/Sierra (GMT 800); and 1997–2004 Ford F-150 2WD and 4WD trucks. Special instructions apply to each vehicle make and model. Contact Air Lift at (800) 248-0892 if you are unsure whether the kit fits your specific vehicle.
Your vehicle may be equipped with a rear brake proportioning valve. Any type of load assist product could affect brake performance. Air Lift recommends checking with your dealer before installing this product. If your vehicle does not have a rear brake proportioning valve or is equipped with an anti-lock brake system, installation of the RideControl kit will not affect brake system performance.
Normal ride height is the distance between the center of the hub and the bottom edge of the wheel well when the vehicle is at its original 'as delivered' height. To measure it: (1) Remove unusual loads and ensure the vehicle is on a level surface. (2) If necessary, use a jack to raise the rear end to achieve the original ride height. (3) Measure the distance between the center of the hub and the bottom edge of the wheel well. Record this measurement, as you will need it during installation to ensure the vehicle is at the correct height when the air springs are installed.
The kit requires a minimum of 6 inches of clearance between the frame and the tire for a fully inflated air spring. Measure this distance before installation to ensure your vehicle has sufficient space. If clearance is insufficient, you may need to trim or remove the rubber jounce bumper bracket (on some vehicles) or relocate other components.
Yes. You must raise the vehicle with a hoist or jack stands and remove the wheels before beginning installation. After raising the vehicle, check that the distance between the center of the hub and the bottom edge of the wheel well matches your recorded normal ride height. If not, adjust the frame or axle as necessary to restore the original distance.
The installation tool (part #10622) is provided with the kit and assists in proper setup and alignment of the air spring. It attaches to the upper and lower brackets and is rigid so that it self-aligns the upper bracket. The threaded section of the upper part of the tool ensures that the air spring can only be mounted at the correct height. The tool also positions the upper bracket for drilling the bolt holes and helps check for obstacles and clearance issues. The tool must be removed after drilling and before final installation of the air spring.
Yes. The kit can be installed in front or behind the axle, or even staggered on opposite sides, as long as sufficient mounting envelope is available. Some vehicles with staggered shock absorbers may require installing the air springs in front and behind the axle on opposite sides of the vehicle. Specific instructions for your vehicle make and model will indicate the recommended mounting location.
Yes. Drilling is required on the frame rail. You will drill 3/8 inch holes for most vehicles and 5/16 inch holes for specific applications (such as the forward upper hole on 1999 Silverado/Sierra when using a self-tapping frame bolt, or when using a self-tapper on late model Ford F-150). Before drilling, you must check the back side of the frame for clearance issues such as brake lines, gas lines, and electrical lines. Any obstacles must be temporarily relocated to clear the drilling area. The installation tool helps position the holes correctly.
It may be necessary to remove or trim the rubber jounce bumper bracket to provide sufficient clearance for the fully inflated air spring. This is required for 1993 and older Dodge 4WD pickups and 1987 and older Chevrolet/GMC 4WD pickups. For other vehicles, check clearance after installation. If rubbing occurs, the jounce bumper bracket may need to be trimmed or removed.
For late model (1994 and newer) 4WD Dodge pickups, you must remove the inner fenderwell liner before installation. Carefully drive the pin through the fasteners with a center punch. These fasteners will be reused along with special spacers to reattach the liner and provide clearance for the air spring. Do not reinstall the liner until after the entire system has been leak and clearance tested. For other vehicles, check whether the fenderwell liner interferes with the air spring.
Yes, for 1997–2004 Ford F-150 2WD and 4WD trucks, it is necessary to relocate the bolt holding the brake line bracket to the inside of the frame rail on the driver side. (1) Remove the nut from the outside of the frame rail and pull the brake line bracket away from the inside of the frame rail. (2) Enlarge the hole just below and slightly forward of the existing attachment using a 3/8 inch drill bit. (3) Place the provided spacer (part #13225) on the bracket side of the threads and reattach the brake line bracket using the original nut. This will not compromise the brake line. Special edition Harley Davidson models also have a spring retaining strap forward of the axle that must be removed.
Yes. On the driver side, forward of the axle, the threaded end of the bolt that holds the brake line clip on the inside of the frame protrudes through to the outside of the frame rail where the upper bracket will be attached. This bolt will prevent the upper bracket from laying flush to the frame rail. It is necessary to remove this bolt. There are other clips to sufficiently hold the lines to the frame, so removing this bolt will not compromise brake line security.
Use a hose cutter, a razor blade, or a sharp knife to cut the air line. A clean, square cut will ensure against leaks. Do not use wire cutters or scissors, as these tools may flatten or crimp the air line, causing it to leak around the O-ring seal inside the elbow fitting. When installing the air line into the fitting, cut off the air line leaving approximately 12 inches of extra length, ensuring a clean square cut.
The lower bracket U-bolt (part #10583) must be torqued to 16 ft/lbs. Use the provided clamp bar (part #01426), 3/8 inch flat washers (part #18444), and 3/8 inch nyloc nuts (part #18435). The bracket will pull down flat to the leaf spring when the lock nuts are tightened.
The upper bracket mounting bolts must be torqued to 20 ft/lbs. The specific hardware varies by vehicle: (1) 1999 Silverado/Sierra and late model Ford F-150: Install a self-tapper (part #17129) in the forward upper hole and tighten securely. In the rear upper hole, install a washer head frame bolt (part #17159), large flat washer (part #18447), and nyloc nut (part #18435), then torque to 20 ft/lbs. (2) Dodge Dakota: Install spacers (part #13225) behind the upper bracket in both forward and rearward holes, then install washer head frame bolts, large flat washers, and nyloc nuts, and torque to 20 ft/lbs. (3) All other vehicles: Install washer head frame bolts, large flat washers, and nyloc nuts in both mounting holes and torque to 20 ft/lbs.
The nylon nut (part #18454) on the air spring must be torqued to 4 ft/lbs. This nut secures the air fitting to the upper thread post of the air spring. Hand tight is sufficient for the lower mounting bolt (½ inch bolt, part #17124); do not attempt to hold the air spring with any type of tool when tightening.
Each air spring is rated at a maximum of 100 p.s.i. However, the actual air pressure needed is dependent on your load and vehicle GVWR, which may be less than 100 p.s.i. Never exceed the maximum GVWR listed in your vehicle owner's manual. Always maintain a minimum pressure of 5 p.s.i. Failure to maintain correct minimum pressure will void the warranty.
The minimum air pressure is 5 p.s.i. You must maintain at least this pressure to prevent bottoming out and to preserve the warranty. After initial installation, inflate the air springs to 10 p.s.i. for alignment, then adjust pressure based on your load to maintain normal ride height. If you need to raise the vehicle by the frame, reduce the system to minimum pressure (5 p.s.i.) to reduce tension on suspension and brake components.
The air spring will expand to 5.1 inches in diameter at maximum inflation pressure. You must ensure at least 2.50 inches of clearance around the tool (and therefore around the air spring) horizontally along the shaft of the installation tool. Check and adjust any fasteners coming through the frame from the inboard side to ensure they do not interfere with the expanded air spring.
Choose a convenient location for mounting the inflation valves. Popular locations include: (1) the wheel well flanges, (2) the license plate recess in the bumper, (3) under the gas cap access door, or (4) through the license plate. Whatever location you choose, ensure there is enough clearance around the inflation valves for an air chuck. You will drill two 5/16 inch holes to install the inflation valves. Approximately ½ inch of valve should be exposed after installation to easily apply a pressure gauge or air chuck.
Route the air line along the frame to the air fitting on the air spring. Keep at least 6 inches of clearance between the air line and heat sources such as exhaust pipes, muffler, or catalytic converter. Avoid sharp bends and edges. Use plastic tie straps (part #10466) to secure the air line to fixed, non-moving points along the chassis. Ensure the tie straps are tight but do not pinch the air line. Leave at least 2 inches of slack to allow for any movement that might pull on the air line. When connecting the air line to the fitting, insert it into the 90-degree swivel fitting until it bottoms out; approximately 9/16 inch of air line should be in the fitting.
No. The installation of the RideControl kit does not alter the Gross Vehicle Weight Rating (GVWR) or payload of the vehicle. You must check your vehicle's owner's manual and not exceed the maximum load listed for your vehicle. The GVWR is the maximum allowable weight of the fully loaded vehicle (including passengers and cargo) and is shown on the vehicle's Safety Compliance Certification Label. Payload is the combined maximum allowable weight of cargo and passengers, calculated as GVWR minus the Base Curb Weight.
The RideControl kit provides up to 2,000 pounds of load-leveling support. However, the installation of the kit does not alter your vehicle's GVWR or payload. You must not exceed the maximum load listed in your vehicle owner's manual. The actual load capacity depends on your vehicle's GVWR and payload rating, not on the air spring system.
You must keep at least 6 inches of clearance between the air lines and heat sources such as exhaust pipes, muffler, or catalytic converter. This prevents the air lines from being damaged by heat. If a heat shield was included in your kit, install it. If there is no heat shield but one is required, call Air Lift at (800) 248-0892.
Inflate the air springs to 30 p.s.i. Spray all connections and the inflation valves with a solution of 1/5 liquid dish soap and 4/5 water. Look for bubbles in the soapy water to spot leaks easily. After the test, deflate the springs to the minimum pressure required to restore normal ride height, no less than 10 p.s.i. Check the air pressure again after 24 hours. A 2–4 p.s.i. loss after initial installation is normal. If the loss is more than 5 p.s.i., retest for leaks and fix accordingly.
Before road testing, complete the following checks: (1) Clearance test—Inflate the air springs to 60 p.s.i. and ensure at least ½ inch clearance around each sleeve away from anything that might rub (tire, brake drum, frame, shock absorbers, brake cables). (2) Leak test—Inflate to 30 p.s.i. and check all connections for leaks with soapy water solution. All leaks must be eliminated before road testing. (3) Heat test—Ensure at least 6 inches clearance from heat sources. (4) Fastener test—Recheck all bolts for proper torque. (5) Road test—Inflate to 25 p.s.i. (or 50 p.s.i. if loaded), drive 10 miles, and recheck for clearance, loose fasteners, and air leaks.
The air spring system must be rechecked after 30 days or 500 miles, whichever comes first. During this inspection: (1) Check for any signs of rubbing or abrasion on the air springs. If found, identify and move the source if possible. If relocation is not possible, the air spring may need to be remounted. (2) Check all fasteners for tightness and retorque if necessary. If professionally installed, consult the installer if issues are found.
Check the air pressure weekly. Always maintain normal ride height. Adjust air pressure as needed to level the vehicle and for ride comfort. When increasing load, always adjust the air pressure to maintain normal ride height. Remember that loads carried behind the axle (including tongue loads) require more leveling force (pressure) than those carried directly over the axle.
Inflate your air springs to 60 p.s.i. before adding the payload. After the vehicle is loaded, adjust your air pressure to level the vehicle and for ride comfort. Always add air to springs in small quantities, checking the pressure frequently, as sleeves require less air volume than a tire and inflate quickly. Never inflate beyond 100 p.s.i. Always maintain normal ride height. If you develop an air leak, use a soapy water solution of 1/5 liquid dish soap and 4/5 water to check all air line connections and the inflation valve core before deflating and removing the air spring.
If it becomes necessary to raise the vehicle by the frame, make sure the system is at minimum pressure (5 p.s.i.) to reduce the tension on the suspension and brake components. Use of on-board leveling systems do not require deflation or disconnection.
To maintain warranty coverage and obtain the longest life and best results from your air springs: (1) Check air pressure weekly. (2) Always maintain normal ride height. (3) Never inflate beyond 100 p.s.i. (4) When increasing load, adjust air pressure to maintain normal ride height. (5) Always add air in small quantities, checking pressure frequently. (6) If you develop an air leak, use a soapy water solution to check connections and valve core before deflating. (7) Do not exceed your vehicle's maximum GVWR. Failure to maintain correct minimum pressure (5 p.s.i.), bottoming out, over-extension, or rubbing against another component will void the warranty.
If there is a problem with the swivel fitting: (1) Check the air line connection by deflating the spring and removing the line by pulling the collar against the fitting and pulling firmly on the air line. Trim 1 inch off the end of the air line. Be sure the cut is clean and square. Reinsert the air line into the push-to-connect fitting. (2) Check the threaded connection by tightening the swivel fitting another ½ turn. If it still leaks, deflate the air spring, remove the fitting, and re-coat the threads with thread sealant. Reinstall by hand tightening as much as possible, then use a wrench for an additional two turns.
If there is a problem with the inflation valve: (1) Check the valve core by tightening it with a valve core tool. (2) Check the air line connection by removing the air line from the barbed type fitting. Do not cut it off, as this will usually nick the barb and render the fitting useless. Instead, cut the air line off a few inches in front of the fitting and use a pair of pliers or vice-grips to pull/twist the air line off the fitting. If these steps do not resolve the problem, call Air Lift customer service at (800) 248-0892 for assistance.
If the system is losing air pressure without an on-board compressor: (1) Leak test the air line connections and threaded connection of the elbow into the air spring. (2) Leak test the inflation valve for leaks at the air line connection or dirt or debris in the valve core. (3) Inspect the air line to be sure it is not pinched. (4) Inspect the air line for holes and cracks. (5) Check for a kink or fold in the air line and reroute as needed. If none of these issues are found, the problem is most likely a failed air spring due to factory defect or operating problem. Call Air Lift at (800) 248-0892 for assistance or a replacement air spring.
Kit 59501 fits 1993+ Dodge 4WD pickups, 1987 and older Chevy/GMC 4WD, 1988–1998 Chevy/GMC, 1999–2007 Silverado/Sierra, and 1997–2004 Ford F-150 2WD/4WD. If you have a 1997–2002 Ford F-150 short box extended cab with a Reese 5th wheel hitch, use kit #59542 instead. Call (800) 248-0892 to confirm fitment.
Maximum is 100 p.s.i. per air spring. Minimum is 5 p.s.i. The actual pressure needed depends on your load and vehicle GVWR. Never exceed your vehicle's maximum GVWR as listed in the owner's manual.
Use a hose cutter, razor blade, or sharp knife to make a clean, square cut. Do not use wire cutters or scissors, as they flatten or crimp the line and cause leaks around the O-ring seal in the fitting.
No. The kit does not alter GVWR or payload. You must not exceed the maximum load listed in your vehicle owner's manual. Check the Safety Compliance Certification Label on your vehicle for GVWR and tire/rim specifications.
Inflate to 30 p.s.i. and spray all connections and valves with a 1/5 dish soap and 4/5 water solution. Look for bubbles. A 2–4 p.s.i. loss after 24 hours is normal. If loss exceeds 5 p.s.i., retest and repair leaks before driving.
Check weekly. Maintain normal ride height at all times. Adjust pressure based on load to keep the vehicle level. Never exceed 100 p.s.i. or go below 5 p.s.i.
Check the air line connection first: deflate the spring, remove the line by pulling the collar against the fitting and pulling firmly, trim 1 inch off the end of the air line with a clean square cut, and reinsert the air line into the push-to-connect fitting. If it still leaks, check the threaded connection by tightening the swivel fitting another ½ turn. If it still leaks after that, deflate the air spring, remove the fitting, re-coat the threads with thread sealant, and reinstall by hand-tightening as much as possible, then use a wrench for an additional two turns.
First, check the valve core by tightening it with a valve core tool. If it still leaks, check the air line connection by removing the air line from the barbed fitting. Do not cut it off, as this will nick the barb and render the fitting useless. Instead, cut the air line a few inches in front of the fitting and use pliers or vice-grips to pull/twist the air line off the fitting. If these steps do not resolve the problem, call Air Lift customer service at (800) 248-0892.
A 2–4 p.s.i. loss after initial installation is normal. If loss exceeds 5 p.s.i., retest for leaks: (1) Leak test the air line connections and threaded connection of the elbow into the air spring. (2) Leak test the inflation valve for leaks at the air line connection or dirt/debris in the valve core. (3) Inspect the air line to ensure it is not pinched. (4) Inspect the air line for holes and cracks. (5) Check for kinks or folds in the air line and reroute as needed. If none of these issues are found, the problem is most likely a failed air spring. Call Air Lift at (800) 248-0892 for assistance or a replacement.
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