Air Lift Air Lift 1000 Air Spring Kit 60837Air LiftOriginal price was $206.99. Current price is $149.99.In Stock
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1990 - 2000 Mitsubishi Montero
Confirmed to Fit
1999 - 2004 Mitsubishi Montero Sport
Confirmed to Fit
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AD-938 LS user guide.pdf
MN-071_AL_1000.pdf
AD-985-ALC-Warranty- Flyer.pdf
Providing up to 1,000 lbs. of load-leveling capacity, Air Lift's air bag kits provide greater safety and comfort when you're carrying a heavy load.
Air Lift adjustable air helper springs level your load, and give your truck, van, or SUV a safer, more comfortable ride. Air springs are easy to install inside the existing coil spring with common mechanic's tools. Just add air when towing or hauling a heavy load, and reduce air pressure when unloaded, they are fully adjustable for a great ride. Air Lift air springs eliminate sag, sway, and bottoming out. They are made with rugged, durable components for long, reliable service. Air Lift 1000 kits fit many popular customer vehicles with coil springs. They're designed to: add support to rear springs on many popular SUVs, replace OEM front air springs on P-30 motor homes, provide front end support for snowplows, winches, etc., improve muscle car traction for drag racing, and improve ride and handling for full-size vans and trucks with front coil springs. Air adjustable with quick connecting, easy-to-use air fittings, Air Lift 1000 air helper springs have a typical max pressure of 35 PSI on cars and SUVs, and 90 PSI on motorhomes. They also have up to 1000 pounds of leveling capacity, right up to the manufacturer's recommended Gross Vehicle Weight Rating. Air Lift 1000 kits also come standard 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.
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Call 888-634-9494Limited Lifetime
2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 1990 - 2000 | Mitsubishi Montero | — |
| 1999 - 2004 | Mitsubishi Montero Sport | — |
The MN-71 is designed for American Motors vehicles and Mitsubishi Montero models with coil spring suspension. The installation procedure differs between these applications: American Motors vehicles use a thick tapered protector in the upper spring seat with the air cylinder stem at the bottom, while Mitsubishi Montero uses a 1/2" thick protector on top of the cylinder with the stem towards the top. Confirm your vehicle model matches one of these applications before purchasing.
Shock absorber removal is optional and only necessary if you need additional clearance. The manual states: "Lower axle or raise body of vehicle until suspension is fully extended. If necessary, additional clearance between the coil may be obtained by removing the shock absorbers from the lower shock mountings and lowering the suspension an additional one to two inches." If you can insert the flattened air cylinder into the lowest coil opening without removing shocks, you do not need to remove them. If you do remove shocks, observe tension on the brake hose and do not strain it.
Air cylinders are shipped in a flattened "as molded" shape. Before installation, remove the plastic cap from the barbed stem on the end of the cylinder and push on the cylinder to exhaust as much air as possible. Replace the cap on the stem to maintain the flat shape. This makes the cylinder easier to insert into the coil spring opening. Once the cylinder is fully inside the coil, remove the cap again to allow it to assume its proper shape.
Use a blunt instrument such as a spoon-type tire iron to push the flattened air cylinder up within the coil spring. Do not use sharp or pointed tools that could damage the cylinder.
In American Motors applications, insert the flattened air cylinder into the lowest coil opening with the stem at the bottom. After the cylinder is fully within the coil and assumes its proper shape, push it to the top of the coil spring. The lower protector is then inserted through the coil opening and centered on the axle spring seat.
In Mitsubishi Montero applications, insert the flattened air cylinder into the lowest coil opening with the stem towards the top. After the cylinder is fully within the coil and assumes its proper shape, push it to the bottom of the coil spring. The 1/2" thick protector is then inserted on top of the air cylinder through the coil opening and centered over the barbed stem. Note: the thick tapered protector is not used for Montero applications.
The protector prevents the air cylinder from being pinched or damaged by the coil spring. In American Motors vehicles, a thick tapered protector is installed in the hole in the upper spring seat, and a lower protector is centered on the axle spring seat. In Mitsubishi Montero applications, a 1/2" thick protector is inserted on top of the air cylinder through the coil opening and centered over the barbed stem. The protector distributes the spring load evenly across the cylinder.
A tee air line installation is recommended for most applications. Use dual air lines only if weight in the vehicle varies from one side to the other and unequal pressures are needed to level the load, or to compensate for axle torque transfer in racing applications. The tee configuration connects both air cylinders to a single inflation valve, while dual lines use separate inflation valves for each side.
Keep the air line at least 12 inches away from the exhaust system, engine and all heat sources to prevent the air line from melting. Also avoid routing air lines near the battery, moving parts such as steering, suspension and cables, as these areas may cause failure of the air line.
Follow this procedure for all air line connections: (1) Slide an air line clamp onto the air line. (2) Push the air line over the barbed end of the straight fitting. (3) Compress the ears on the air line clamp with pliers and slide it down to fully cover the barred section. Repeat this process for each connection. Ensure the clamp fully covers the barbed section to prevent air leaks.
Drill a 5/16" hole for the inflation valve. The valve can be mounted in the hood release, front bumper, fender flange, or behind the license plate, ensuring that the valve will be protected and accessible with an air hose. A rubber washer is included for outside weather seal.
For dual air line installations, cut air line not longer than 90 inches to reach from the valve location to each air cylinder.
Route the air line along the inner fender panel or frame rails to the air cylinders and inflation valve location. Secure the air line to the chassis using plastic straps or wire. Leave sufficient air line slack to prevent any strain on fittings during axle motions. Do not route air lines in areas that may cause failure, such as near the battery, exhaust, engine, or moving parts like steering, suspension and cables.
Yes, a heat shield kit must be installed. The manual states "Install Heat Shield kit" as step 4 of the installation process. Separate instructions are included with the heat shield kit. Contact Air Lift Company at 1-800-248-0892 for the heat shield kit part number and detailed installation instructions.
Inflate the air springs to 35 psi initially. This is the maximum operating pressure. After inflation, check for air leaks at all fittings and the valve core using a soapy water solution. After the vehicle is loaded with payload, you can adjust the air pressure downward to level the vehicle and for ride comfort.
Use a soapy water solution to check for air leaks at all air line connections and the valve core. Apply the soapy solution to each connection point and look for bubbles, which indicate a leak. This check should be performed after initial inflation to 35 psi and again if pressure loss exceeds 5 psi after 24 hours.
After replacing the wheels, removing safety stands and carefully lowering the vehicle to the ground, check to ensure the cylinder is properly seated in the coil spring. Then deflate the air springs in 5 psi intervals to determine the best ride and handling. Sufficient air pressure should be maintained to help prevent bottoming-out on large bumps and potholes.
The minimum air pressure is 5 psi. Always maintain at least 5 psi to prevent chafing or coil pinch. Failure to maintain minimum pressure will void the warranty. Check pressure weekly.
The maximum air pressure is 35 psi. Do not exceed this pressure. Inflate to 35 psi before adding payload, then adjust downward after loading to level the vehicle and for ride comfort.
A 2-4 psi loss is normal after initial installation. Recheck air pressure after 24 hours. If the pressure has dropped more than 5 psi, re-test for leaks with a soapy water solution at all air line connections and the valve core.
Do not exceed the vehicle manufacturer's maximum Gross Vehicle Weight Rating (GVWR). The MN-71 is designed to support the vehicle's suspension but cannot exceed the structural limits set by the vehicle manufacturer.
When carrying a payload, increase the tire inflation pressure in proportion to the overload condition. Air Lift recommends a 2 psi increase above normal tire pressure (not to exceed the tire manufacturer's maximum) for each 100 lbs of additional load on the axle.
The MN-71 is designed for American Motors vehicles and Mitsubishi Montero models with coil spring suspension. Installation procedures differ between these applications.
Shock absorber removal is optional and only needed if you require additional clearance to insert the flattened air cylinder into the coil spring. If you do remove them, do not strain the brake hose.
Keep the air line at least 12 inches away from the exhaust system, engine and heat sources to prevent melting. Avoid routing near the battery and moving parts.
Drill a 5/16" hole for the inflation valve. Mount it in the hood release, front bumper, fender flange, or behind the license plate where it is protected and accessible.
Inflate to 35 psi (maximum pressure) and check for leaks with soapy water. After loading, deflate in 5 psi intervals to find the best ride and handling, maintaining at least 5 psi minimum.
Minimum: 5 psi (required to prevent chafing and coil pinch; failure to maintain voids warranty). Maximum: 35 psi. Check pressure weekly.
No. Do not exceed the vehicle manufacturer's maximum Gross Vehicle Weight Rating. The air springs support the suspension but cannot exceed the vehicle's structural limits.
A 2-4 psi loss is normal after initial installation. If pressure has dropped more than 5 psi after 24 hours, re-test for leaks using a soapy water solution. Check all air line connections and the valve core for bubbles, which indicate a leak. Tighten any loose connections or replace damaged fittings.
The air line is too close to a heat source. Keep the air line at least 12 inches away from the exhaust system, engine and all heat sources. Reroute the air line away from these areas and away from the battery and moving parts such as steering, suspension and cables.
Ensure the air line clamp fully covers the barbed section of the fitting. Slide the air line clamp down to fully cover the barbed section using pliers to compress the ears. If the clamp is already properly positioned, the fitting may be damaged or the air line may not be fully seated on the barbed stem. Disconnect, inspect both the fitting and air line end, and reconnect using the proper procedure: slide clamp onto line, push line over barbed stem, compress clamp ears with pliers and slide down to cover the barbed section.
After lowering the vehicle to the ground, check to ensure the cylinder is properly seated in the coil spring. If the cylinder is not seated, the protector may not be properly positioned or the cylinder may not have fully expanded. Verify that the protector is centered correctly: in American Motors vehicles, the lower protector should be centered on the axle spring seat; in Montero applications, the 1/2" thick protector should be centered over the barbed stem. Ensure the cylinder has fully assumed its proper shape after the plastic cap was removed.
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