Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88398Air LiftOriginal price was $887.99. Current price is $643.99.In Stock
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1990 - 1997, 1999 - 2004, 2006 - 2008 Ford F-53 Motorhome Chassis
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LoadLifter 5000 ULTIMATE with internal jounce bumper to absorb shock for best ride comfort
Adjustable air spring kit for leaf springs
Rear
Safely run w/zero air pressure
LoadLifter 5000 ULTIMATE adjustable air spring kits feature all of the benefits of our heaviest rated air spring with the addition of an internal jounce bumper inside the spring for the ultimate in ride comfort. An Air Lift exclusive product! Fits vehicles with in-bed hitches. Tow and haul the heaviest loads with safety and comfort with LoadLifter 5000 ULTIMATE. Works with vehicle's leaf springs to provide up to 5,000 lbs. of front load leveling capacity and keeps the vehicle riding stable, level and comfortable whether loaded or unloaded. Fully adjustable from 5 to 100 PSI. The closed-cell urethane foam jounce bumper inside the ULTIMATE air springs provide a cushion of air that absorbs shock, eliminates harsh jarring on rough roads and protects vehicles carrying heavy loads. Never bottom out again with the ULTIMATE! LoadLifter 5000 ULTIMATE air springs are maintenance free! Safely run with zero air pressure because of the internal jounce bumper. Replaces factory jounce bumper that is sometimes removed when adding air springs. Easy to install in less than 2 hours. Includes industry-exclusive 60 Day No Questions Money Back Guarantee! Includes the most comprehensive Lifetime Warranty in the industry---covers all kit contents including brackets, fittings and air line. Air springs are built like a tire and are reinforced by durable, 2-ply fabric for maximum strength. Exclusive upper and lower roll plates included. Protect the springs from sharp edges, such as brackets or the frame. The kit includes 2 air springs, brackets, air lines, Schrader valve and all of the hardware needed for installation. Includes fully illustrated instruction manual. Add an Air Lift on-board air compressor system to inflate and deflate air springs with the touch of a button from inside or outside of the vehicle. Air Lift is a 3rd generation family owned company that has been manufacturing the highest quality suspension products in Lansi
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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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 1990 - 1997, 1999 - 2004, 2006 - 2008 | Ford F-53 Motorhome Chassis | — |
Yes, the Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88140 (Part #BBCG88140) is designed to fit the 1990-2008 Ford F-53 Motorhome Chassis.
The Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88140 (Part #BBCG88140) fits the following vehicles: 1990-2008 Ford F-53 Motorhome Chassis. Always verify your specific year, make, and model before ordering.
The Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88140 (Part #BBCG88140) fits 1990-2008 Ford F-53 Motorhome Chassis models. The 2008 model year is the last year covered by this part number. For newer models, check for an updated version.
The Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88140 (Part #BBCG88140) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The LoadLifter 5000 Ultimate is an adjustable air helper spring system designed for load leveling on 3/4 and 1 ton pickups, SUVs, and motorhomes with leaf springs. It uses reinforced commercial-grade convolute bellows with an internal jounce bumper that absorbs shock and allows the springs to run safely at zero air pressure. The kit provides up to 5,000 lbs. of load leveling support with air adjustability from 5–100 PSI.
The kit is recommended for most 3/4 and 1 ton pickups and SUVs with leaf springs. It is also used in motorhome rear kits and some motorhome fronts where leaf springs are used. The manual does not list specific vehicle models or years. Contact Air Lift at (800) 248-0892 to confirm fitment for your specific vehicle.
No. Installing air springs will not change the weight ratings (GAWR, GCWR, and/or GVWR) of your vehicle. You must not exceed your vehicle's GVWR, as stated in your vehicle's owner's manual. Exceeding the GVWR is dangerous and voids the Air Lift warranty.
Any type of load assist product could affect brake performance on vehicles equipped with a rear brake proportioning valve. Air Lift recommends that you check with your vehicle's 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 will have no effect on brake system performance.
Normal Ride Height is the distance between the bottom edge of the wheel well and the center of the hub with the vehicle in the "as delivered" condition. You must measure this before installation to establish a baseline for proper air spring adjustment. Remove unusual loads and ensure the vehicle is on a level surface. If leaf springs are sagging badly, use a jack to raise the rear end to the original "as delivered" ride height before measuring.
Required tools include: 7/16" and 9/16" open-end or box wrenches; crescent wrench; ratchet with 3/8", 9/16", and 1/2" deep well sockets; 3/8" and 5/16" drill bits (very sharp); 3/8" nut driver; heavy duty drill; torque wrench; hose cutter, razor blade, or sharp knife; hoist or floor jacks; safety stands; safety glasses; air compressor or compressed air source; and spray bottle with dish soap/water solution.
The kit includes: 2 air springs; 2 upper brackets; 2 lower brackets; 4 carriage bolts (3/8" × 3.5"); 2 clamp bars; 2 hex head cap bolts (1/2" × 1.5"); 2 lock washers (1/2"); 2 flat washers (1/2"); 2 hex nuts (1/2"); 8 lock nuts (3/8"); 4 flat washers (3/8"); 8 hex head bolts (3/8" × 7/8"); 8 flat washers (3/8"); 8 lock washers; 2 tube elbows (1/8" × 1/4"); 1 air line assembly; 6 tie straps; 2 valve caps; 2 flat washers (5/16"); 2 rubber washers; 2 star washers; 4 hex nuts (5/16"); and 2 thermal sleeves.
The air spring mounting bolts (3/8-16 × 7/8" hex head bolts) should be torqued to 20 ft. lbs. This applies to both the upper and lower bracket attachment points.
The carriage bolts (3/8" × 3.5") that secure the lower bracket to the leaf spring should be torqued to 20 ft. lbs. The axle clamp bar carriage bolt lock nuts should be re-torqued to 16 ft/lbs after 100 miles.
The upper bracket is secured to the frame rail with one 1/2-13 × 1.5" bolt, 1/2" flat washer, 1/2" lock washer, and 1/2" hex nut. The manual does not specify a torque value for this bolt. Contact Air Lift at (800) 248-0892 for the correct torque specification.
On some late model vehicles, the chassis has a round jounce bumper under the frame that will interfere with the installation of the air spring assembly. If your vehicle is equipped with this style jounce bumper, you must remove and discard it. The internal jounce bumper inside the LoadLifter 5000 Ultimate air spring replaces the factory bumper.
Yes. You must drill one 1/2" hole in the side of the frame rail to attach the upper bracket. Before drilling, you must check for hydraulic lines, gas lines, and electrical wires that may need to be moved aside on either side of the frame. You must also drill a 5/16" hole to install the inflation valves, typically in the wheel well or lower body ahead of the rear wheel.
Before drilling any holes in the frame, you must check for hydraulic lines, gas lines, and electrical wires that may have to be moved aside on either side of the frame. Failure to do so could result in damage to critical vehicle systems.
Use a hose cutter (Air Lift P/N 10530), a razor blade, or a sharp knife to cut the air line. A clean, square cut is essential to prevent 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 trimming the excess air line before inserting it into the air fitting, cut off the air line leaving approximately 12 inches of extra air line.
Choose a convenient location for mounting the inflation valves where there is enough clearance around them for an air chuck. The recommended location is in the wheel well or lower body ahead of the rear wheel, with one on each side. This provides ease of filling, checking, and measuring body height to compensate for side-to-side lean and sag. Drill a 5/16" hole to install each inflation valve.
Route the air line along the frame to the air spring location on the leaf spring, behind the axle. Keep at least 6" 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 to secure the air line to fixed, non-moving points along the chassis. Tie straps should be tight but must not pinch the air line. Leave at least 2" of slack to allow for any movement that might pull on the air line. On the passenger side only, place a thermal sleeve on the air line near the exhaust.
This is a push-to-connect fitting. Simply push the air line into the fitting until it bottoms out (5/8" of air line should be in the fitting). Maintain a smooth bend from the air spring and do not kink the air line. Ensure the cut end of the air line is clean and square before insertion.
The minimum recommended air pressure is 5 PSI, but the air springs can safely be run at zero air pressure. The maximum air pressure is 100 PSI. Never exceed 100 PSI, regardless of load or other factors.
Loaded vehicles require at least 25 PSI or more. A "loaded vehicle" refers to a vehicle with a heavy bed load, a trailer, or both. The springs in this kit will support approximately 40 lbs. of load (combined on both springs) for each 1 PSI of pressure. The required air pressure will vary depending on the state of the original suspension. Always adjust the air pressure to maintain normal ride height. Never exceed your vehicle's GVWR, regardless of air spring pressure or other load assist.
Yes. The LoadLifter 5000 Ultimate can safely be run at zero air pressure because it has an internal jounce bumper inside the spring that absorbs shock and eliminates harsh jarring. However, the recommended minimum air pressure is 5 PSI.
The vehicle can be lifted on a hoist for short-term service work such as tire rotation or oil changes. However, if the vehicle will be on the hoist for a prolonged period of time, support the axle with jack stands to take the tension off the air springs. When raising the vehicle by the frame, make sure the system is at minimum pressure (5 PSI) to reduce tension on the suspension and brake components. Use of on-board leveling systems do not require deflation or disconnection.
You must perform the following checks: (1) Clearance test—inflate to 60 PSI and ensure at least 1/2" clearance around each bellow away from tire, brake drum, frame, shock absorbers, and brake cables; (2) Leak test—inflate to 60 PSI and check all connections with soapy water solution; (3) Heat test—ensure at least 6" clearance from heat sources; (4) Fastener test—recheck all bolts for proper torque, and re-torque axle clamp bar carriage bolt lock nuts to 16 ft/lbs after 100 miles; (5) Road test—drive 10 miles and recheck for clearance, loose fasteners, and air leaks.
Inflate the air springs to 60 PSI. Spray all connections and inflation valves with a solution of 1/3 dish soap and 2/3 water. Look for bubbles in the soapy water to spot leaks easily. After testing, deflate the springs to the minimum pressure required to restore normal ride height, but do not go below 5 PSI. Check the air pressure again after 24 hours. A 2 to 4 PSI loss after initial installation is normal. Retest for leaks if the loss is more than 5 lbs.
Check air pressure weekly. Always maintain normal ride height and never inflate beyond 100 PSI. Periodically check all fasteners for tightness and check air springs for signs of rubbing, realigning if necessary. After 30 days or 500 miles (whichever comes first), recheck the system for rubbing or abrasion and verify all fasteners are tight. Periodically spray the air springs with a garden hose to remove mud, sand, gravel, or other abrasive debris. If an air leak develops, use a soapy water solution (1/5 liquid dish soap and 4/5 water) to check all air line connections and the inflation valve core.
If the air springs are properly installed and maintained, they can last indefinitely.
First, perform a leak test using a soapy water solution (1/3 dish soap and 2/3 water) on all air line connections and the inflation valve. Check the air line connections and the threaded connection of the elbow into the air spring. Tighten the valve core with a valve core tool if the inflation valve is leaking. Inspect air lines to ensure they are not pinched by tie straps—loosen or replace straps as needed. Inspect air lines for holes, cracks, kinks, or folds and replace or re-route as needed. If the loss is more than 5 PSI after 24 hours, there is a leak that must be fixed. If these steps do not resolve the problem, the issue is likely a failed air spring. Call Air Lift at (800) 248-0892 for assistance or a replacement.
Deflate the spring and remove the line by pushing the collar against the fitting and pulling the air line straight out. Trim 1" off the end of the air line, ensuring the cut is clean and square. Reinsert the air line into the push-to-connect fitting until it bottoms out (5/8" of air line should be in the fitting).
Tighten the valve core with a valve core tool. If a leak is still detected, repair the air line by removing it from the barbed type fitting. Do not cut the air line 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 vise-grips to pull or twist the air line off the fitting.
If the vehicle's headlights are shining into the trees or the vehicle is leaning to one side, raise the air pressure to correct either of these problems and level the vehicle. It may be necessary to maintain different pressures on each side of the vehicle. Loads such as water, fuel, and appliances will cause the vehicle to be heavier on one side. As much as a 50 PSI difference is not uncommon.
If the vehicle has a rough or harsh ride, it may be due to either too much pressure or not enough. Try different pressures to determine the best ride comfort. If the vehicle rocks and rolls, adjust the air pressure to reduce movement. If the front of the vehicle dives while braking, increase the pressure in the front air bags if equipped.
If it is suspected that the air springs have bottomed out, increase the pressure. This will help prevent the springs from fully compressing and causing a harsh ride or potential damage.
The kit is recommended for most 3/4 and 1 ton pickups and SUVs with leaf springs, and motorhome rear and some front kits. Contact Air Lift at (800) 248-0892 to confirm fitment for your specific vehicle model and year.
Torque the 3/8-16 × 7/8" hex head bolts to 20 ft. lbs. for both upper and lower bracket attachment. Torque carriage bolts to 20 ft. lbs., then re-torque axle clamp bar carriage bolt lock nuts to 16 ft/lbs after 100 miles.
Minimum recommended pressure is 5 PSI (can run at zero PSI). Loaded vehicles require at least 25 PSI. Maximum pressure is 100 PSI. Adjust pressure to maintain normal ride height and vehicle stability.
Inflate to 60 PSI and check for leaks using soapy water. Ensure 1/2" clearance around bellows from tires, frame, and shock absorbers. Verify 6" clearance from heat sources. Recheck all fastener torque. Drive 10 miles and recheck for leaks and loose fasteners.
Check air pressure weekly. Maintain normal ride height. After 30 days or 500 miles, recheck for rubbing and fastener tightness. Periodically spray springs with a garden hose to remove debris. Do not exceed 100 PSI.
No. The installation does not alter GVWR or payload. You must not exceed your vehicle's GVWR as stated in the owner's manual. Exceeding GVWR is dangerous and voids the warranty.
No. Air pressure can be adjusted with any type of compressor as long as it can produce sufficient pressure. Even a bicycle tire pump can be used. An on-board compressor system is optional but provides convenient control from inside or outside the vehicle.
First, perform a leak test using a soapy water solution (1/3 dish soap and 2/3 water). Spray all air line connections and the inflation valve. Look for bubbles to identify leaks. Check the air line connections and the threaded connection of the elbow into the air spring. If no leaks are visible, tighten the valve core with a valve core tool. A 2 to 4 PSI loss after initial installation is normal. If loss exceeds 5 PSI after 24 hours, there is a leak that must be fixed.
Deflate the spring and remove the line by pushing the collar against the fitting and pulling the air line straight out. Trim 1" off the end of the air line, ensuring the cut is clean and square. Reinsert the air line into the push-to-connect fitting until it bottoms out (5/8" of air line should be in the fitting).
Tighten the valve core with a valve core tool. If a leak is still detected, repair the air line by removing it from the barbed type fitting. Do not cut the air line, 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 vise-grips to pull or twist the air line off the fitting.
Inspect the air lines to ensure they are not pinched by tie straps. If pinched, loosen or replace the straps. Inspect for kinks or folds and re-route the air line as needed. Maintain at least 6" clearance from heat sources and avoid sharp bends and edges. Leave at least 2" of slack to allow for movement.
If the vehicle's headlights are shining into the trees or the vehicle is leaning to one side, increase the air pressure to level the vehicle. It may be necessary to maintain different pressures on each side. Loads such as water, fuel, and appliances will cause the vehicle to be heavier on one side. As much as a 50 PSI difference is not uncommon.
If the vehicle has a rough or harsh ride, it may be due to either too much pressure or not enough. Try different pressures to determine the best ride comfort. If the vehicle rocks and rolls, adjust the air pressure to reduce movement. If the front of the vehicle dives while braking, increase the pressure in the front air bags if equipped.
If it is suspected that the air springs have bottomed out, increase the pressure. This will help prevent the springs from fully compressing and causing a harsh ride or potential damage.
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