Air Lift RIDE CONTROL KIT 59501Air LiftOriginal price was $590.99. Current price is $428.99.In Stock
View productAsk a Question About This Product
Our in-house experts typically reply within one business day.
Our in-house experts typically reply within one business day.
Air Lift
Verify Fitment
Select your vehicle to confirm this part fits.
1995 Isuzu Pickup
Confirmed to Fit
1969 - 1995 Toyota Pickup
Confirmed to Fit
1993 - 1998 Toyota T100
Confirmed to Fit
Always the correct part
We know our products
Quality Products
Free Shipping!
Always the correct part
We know our products
Quality Products
Free Shipping!
RideControl leaf spring leveling kit.
RideControl provides more safety, stability and ride comfort. The kit fits many popular vehicles with leaf springs, including half-ton and mini pickups, full-size and mini vans, and SUVs. Both front and rear applications are available for these vehicles. Each kit includes everything you need. End caps are made of an ultra-strong nylon composite that is as strong as steel, but weighs less and is corrosion-proof. Air Lift RideControl adjustable air springs work with your existing leaf spring suspension. Just add air when towing or hauling a heavy load, and reduce air pressure when unloaded, the air bags are fully adjustable for a great ride. Air Lift air springs eliminate sag, sway, and bottoming out. These rugged, durable components mean that you get reliable service from the springs for the lifetime of the vehicle. Air Lift RideControl air helper springs are air-adjustable from 5 to 100 PSI and have up to 2,000 pounds of leveling capacity, right up to the manufacturer's recommended Gross Vehicle Weight Rating. They also come with a limited lifetime warranty and an exclusive 60-day ride satisfaction guarantee.
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.
Experts available to answer your questions
Call 888-634-9494Limited Lifetime
3 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 1995 | Isuzu Pickup | — |
| 1969 - 1995 | Toyota Pickup | — |
| 1993 - 1998 | Toyota T100 | — |
The Air Lift RIDE CONTROL KIT 59502 (Part #BBCG59502) fits the following vehicles: 1995 Isuzu Pickup; 1969-1995 Toyota Pickup; 1993-1998 Toyota T100. Always verify your specific year, make, and model before ordering.
Yes, the Air Lift RIDE CONTROL KIT 59502 (Part #BBCG59502) is designed to fit the 1995 Isuzu Pickup.
The Air Lift RIDE CONTROL KIT 59502 (Part #BBCG59502) fits 1995 Isuzu Pickup models. The 1998 model year is the last year covered by this part number. For newer models, check for an updated version.
The Air Lift RIDE CONTROL KIT 59502 (Part #BBCG59502) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Part number 59502 (MN-252) is an Air Lift Load Assist air spring kit designed to support additional load on leaf spring equipped vehicles. It uses compressed air to help level the vehicle and support payload, maintaining normal ride height regardless of load. The kit includes air sleeves, brackets, air lines, inflation valves, and all necessary fasteners.
Yes, the kit is designed for both 2WD and 4WD leaf spring equipped vehicles. However, the installation procedure differs: 2WD models require an adapter bracket and the lower bracket must be positioned around the vehicle U-bolt, while 4WD models do not require an adapter bracket and the lower bracket sets over the U-bolts.
The manual states that any type of load assist product could affect brake performance on vehicles equipped with a rear brake proportioning valve. Air Lift recommends checking with your vehicle dealer before installing this product if your vehicle has a brake proportioning valve. 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.
No. The kit is designed specifically for leaf spring equipped vehicles. The lower bracket is designed to mount to the leaf spring and U-bolts, and the installation procedure assumes a leaf spring suspension system.
The manual specifies: an open end wrench (for tightening the air fitting hex nut), a drill with 5/16 inch drill bit (for upper bracket and inflation valve holes), a standard tube cutter, razor blade, or very sharp knife (for cutting air line), and a torque wrench (for tightening fasteners to specified values). A hoist or jack and jack stands are needed to raise the vehicle and support the axle.
The kit includes: 1/2 inch HHCS bolts, 1/2 inch flat washers, U-bolts with lock nuts, 3/8 inch self-tapping frame bolts, nylon nuts, plastic straps for routing air line, and an adapter bracket (for 2WD models only). The manual does not specify quantities for each fastener type.
Ride height is defined as the distance between the bottom edge of the fenderwell to the center point of the wheel with the vehicle at the desired height without a load. The kit is designed to be installed and operate at normal ride height. Measuring and recording this distance before installation ensures the air springs are set up correctly to maintain the vehicle's intended suspension geometry and clearances.
After measuring ride height, jack up the rear of the vehicle or raise it on a hoist. Raise the axle or lower the frame until the leaf spring is at ride height in the unloaded condition. This ensures the suspension is at the correct position for bracket alignment and installation.
Install the air fitting finger tight plus 1 1/2 turns. Use an open end wrench, applying caution to tighten on the metal hex nut only. Do not over tighten. This prevents damage to the fitting while ensuring a secure connection.
Thread the air fitting through the bottom of the J-bracket and position the elbow towards the front or rear of the vehicle depending on which direction will allow easier access for the air line. This flexibility allows the installer to route the air line in the most practical way for each vehicle.
The nylon nut must be threaded onto the thread post with the curved edge toward the sleeve. This orientation ensures proper sealing and prevents damage to the air spring assembly.
No. The adapter bracket is required only for 2WD models. It is used to mount the kit behind the axle on the side where the shock is next to the assembly. No adapter is needed when the shock is on the opposite side of the axle, and 4WD models do not require an adapter bracket at all.
Slide the adapter bracket under the lower bracket and lock it in place by inserting the tabs on the adapter through the original mounting holes in the lower bracket. When using the adapter bracket, use two flat washers on each leg of the U-bolt.
No. On most models, the finger and post of the lower bracket may not hook around the U-bolt. In this case, bend the post in toward the spring and bend the finger down so it locks around the U-bolt. This modification is shown in Figures 5 and 6 for 2WD models and Figures 5 and 8 for 4WD models.
Yes. On 2WD models, it is necessary to remove the lower shock absorber mounting bolt to position and tighten the provided U-bolt with the lower bracket and adapter assembly in place. After the U-bolt is secured, the lower shock mounting bolt is reinstalled.
For 4WD models, torque the U-bolt to 16 ft-lbs. This specification applies when securing the lower bracket to the leaf springs using the provided U-bolts, flat washers, and lock nuts.
The upper bracket must be in line with the lower bracket and on the same angle as the leaf spring. It must be parallel and perpendicular to the lower bracket. The upper bracket is designed to be tilted for the proper angle, and the bottom of the upper bracket must fit tight to the bottom of the frame rail.
At least three of the five predrilled mounting holes on the upper bracket must be used. Any combination of three holes is permissible, allowing flexibility for different frame configurations.
Drill three 5/16 inch holes using the bracket as a template to center punch. The holes must be no larger than 5/16 inch. Before drilling, ensure any hydraulic, fuel, or electrical lines in the area have been moved or shielded.
Tighten the self-tapping frame bolts to 15 ft-lbs. Do not over tighten.
Select a location for the inflation valves in the rear bumper area or rocker panel flange, ensuring that each valve will be protected and accessible with an air hose. This positioning protects the valves from damage while allowing easy access for inflation.
Drill a 5/16 inch hole for the inflation valve. Install the rubber washer on the outside for weather seal.
Route the air line along the frame from the inflation valve location to the air fitting. Attach the air line to the chassis using the provided plastic straps. Keep the air line at least 12 inches from the exhaust system to prevent melting.
Use a standard tube cutter, a razor blade, or very sharp knife to cut the air line. A clean square cut will ensure against leaks. Cut off excess air line squarely.
Push and slightly turn the cut end of the air line into the fitting as far as it will go, approximately 9/16 inch. A definite click can be heard and/or felt when the air line is seated. This indicates the air line is properly installed.
Before tightening the lower sleeve mounting bolt, inflate the sleeve to approximately 10 p.s.i. This allows you to center the sleeve so it is in line with the upper and lower brackets with a symmetrical cushion of air around the lower base of the sleeve. This prevents side load wear and ensures proper alignment.
The sleeve diameter grows to 4.6 inches at maximum inflation. Check to ensure there is clearance all around the sleeve when fully inflated to prevent rubbing against other components.
Tighten the lower sleeve mounting bolt to 10 ft-lbs. Do not over tighten.
After inflating to 30 p.s.i., check all fittings and valve core for leaks using a liquid solution of 1/5 dish soap to 4/5 water mixed in a spray bottle. Recheck air pressure after 24 hours. A 2-4 p.s.i. loss after initial installation is normal. If pressure has dropped more than 5 p.s.i., retest for leaks with the soapy water solution.
The minimum air pressure is 5 p.s.i. Always maintain at least 10 p.s.i. air pressure during normal operation. The minimum air pressure keeps the air spring in shape, ensuring it will move throughout its travel without rubbing or wearing on itself. Failure to maintain correct minimum pressure will void the warranty.
The maximum air pressure is 100 p.s.i. Do not inflate beyond 100 p.s.i. Improper use or over inflation may cause the assembly to burst, causing property damage or severe personal injury.
No. Adding air springs will not change the weight ratings (GAWR, GCWR, and/or GVWR) of a vehicle. Do not exceed the maximum load recommended by the vehicle manufacturer or the GVWR. Exceeding the GVWR is dangerous and voids the Air Lift warranty.
Inflate the air springs to 60 p.s.i. before adding the payload. After the vehicle is loaded, adjust the air pressure to level the vehicle. The actual air pressure needed depends on the load and GVWR, which may be less than 100 p.s.i. Check your vehicle owner's manual and do not exceed maximum loads listed for your vehicle.
When inflating air springs, add pressure in small quantities and check the pressure frequently during inflation. The sleeves require much less air volume than a tire and therefore inflate much faster. This prevents over-inflation and allows for precise pressure adjustment.
If it becomes necessary 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. After lowering the vehicle, check that the air spring rolls back down over the bottom piston. If the sleeve fails to roll back down, add air pressure until the sleeve pops back over the piston, but do not exceed 100 p.s.i.
Check pressure weekly. Always maintain at least 10 p.s.i. air pressure during normal operation.
If the air springs are properly installed and maintained, they can last indefinitely. Proper maintenance includes checking pressure weekly, maintaining at least 10 p.s.i. pressure, and following all installation and operation instructions.
Yes, 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.
No. Air pressure can be adjusted with any type of compressor as long as it can produce sufficient pressure to service the springs. Even a bicycle tire pump can be used, although it requires more effort.
If the vehicle rocks and rolls, or if the front of the vehicle dives while braking, the air springs may have bottomed out. Increase the air pressure to correct these issues. If it is suspected that the air bags have bottomed out, increase the pressure.
If an air leak is suspected, use a soapy water solution to check all air line connections and the inflation valve core before removing the sleeve. Mix 1/5 dish soap to 4/5 water in a spray bottle and apply to all connections. Bubbles will indicate the location of the leak.
If the vehicle's headlights are shining into the trees or the vehicle is leaning to one side, it is not level. 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 if loads such as water, fuel, and appliances cause the vehicle to be heavier on one side.
A rough and harsh ride may be due to either too much pressure or not enough pressure. Try different pressures to determine the best ride comfort. If the vehicle rocks and rolls, adjust the air pressure to reduce movement and improve stability.
If the sleeve fails to roll back down over the piston after the vehicle is lowered, add air pressure until the sleeve pops back over the piston. Do not exceed 100 p.s.i. This indicates the pressure was too low to maintain proper sleeve position.
The 59502 is designed for leaf spring equipped vehicles in both 2WD and 4WD configurations. If your vehicle has a rear brake proportioning valve, check with your dealer before installing. The kit will not work on vehicles without leaf springs.
You will need: a drill with 5/16 inch bit, an open end wrench, a tube cutter or sharp knife, a torque wrench, and a hoist or jack with jack stands. The kit includes all fasteners and brackets needed.
Yes. You must drill three 5/16 inch holes in the frame for the upper bracket and one 5/16 inch hole for the inflation valve. Before drilling, ensure any hydraulic, fuel, or electrical lines in the area have been moved or shielded.
Upper bracket frame bolts: 15 ft-lbs. Lower sleeve mounting bolt: 10 ft-lbs. U-bolt (4WD only): 16 ft-lbs. Do not over tighten any fasteners.
Minimum: 5 p.s.i. (for frame lifting); Normal operation: maintain at least 10 p.s.i.; Maximum: 100 p.s.i. Start at 60 p.s.i. before loading, then adjust to level the vehicle.
Inflate to 30 p.s.i. and check all fittings and valve cores using a soapy water solution (1/5 dish soap to 4/5 water). A 2-4 p.s.i. loss after 24 hours is normal. If loss exceeds 5 p.s.i., retest for leaks.
Check pressure weekly and maintain at least 10 p.s.i. at all times. If an air leak develops, use soapy water to locate it before removing the sleeve. Properly installed and maintained air springs can last indefinitely.
Use a soapy water solution (1/5 dish soap to 4/5 water) to check all air line connections and the inflation valve core. Spray the solution on all connections and look for bubbles to identify the leak location. Do not remove the sleeve until the leak source is identified.
The air pressure is too low. Add air pressure until the sleeve pops back over the piston, but do not exceed 100 p.s.i. Ensure the system is maintained at the correct pressure for your load to prevent this issue.
The vehicle is not level. Raise the air pressure to correct this problem. It may be necessary to maintain different pressures on each side of the vehicle if loads such as water, fuel, and appliances cause uneven weight distribution. A difference of up to 50 p.s.i. between sides is not uncommon.
Try adjusting the air pressure up or down to find the best ride comfort. A rough ride may be caused by either too much or too little pressure. If the vehicle rocks and rolls, increase the pressure to improve stability.
This is a stability issue. Increase the air pressure in the air springs to reduce brake dive. If the vehicle continues to dive excessively, check that the air springs have not bottomed out and increase pressure as needed.
On Sale Today
Original price was $590.99. Current price is $428.99.You save $162.00 (27%)
Free Shipping
Ships free on all orders
Authorized Dealer
Quick Ship
In stock and ready to ship — order now!
FREE ShippingFREE SHIPPING
Estimated delivery Thu, Sep 10 - Sun, Sep 13
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout
No reviews have been added for this product.