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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1975 - 1995 Chevrolet G20
Confirmed to Fit
1970 - 1974 Chevrolet G20 Van
Confirmed to Fit
1975 - 1995 Chevrolet G30
Confirmed to Fit
1970 - 1974 Chevrolet G30 Van
Confirmed to Fit
1975 - 1980 Dodge B100
Confirmed to Fit
1971 - 1974 Dodge B100 Van
Confirmed to Fit
1981 - 1994 Dodge B150
Confirmed to Fit
1995 - 1998 Dodge B1500
Confirmed to Fit
1975 - 1980 Dodge B200
Confirmed to Fit
1971 - 1974 Dodge B200 Van
Confirmed to Fit
1981 - 1994 Dodge B250
Confirmed to Fit
1995 - 1998 Dodge B2500
Confirmed to Fit
1975 - 1980 Dodge B300
Confirmed to Fit
1971 - 1974 Dodge B300 Van
Confirmed to Fit
1981 - 1994 Dodge B350
Confirmed to Fit
1995 - 1998 Dodge B3500
Confirmed to Fit
1999 - 2003 Dodge Ram 1500 Van
Confirmed to Fit
1999 - 2003 Dodge Ram 2500 Van
Confirmed to Fit
1999 - 2003 Dodge Ram 3500 Van
Confirmed to Fit
1975 - 1978 GMC G25
Confirmed to Fit
1970 - 1974 GMC G25/G2500 Van
Confirmed to Fit
1979 - 1995 GMC G2500
Confirmed to Fit
1975 - 1978 GMC G35
Confirmed to Fit
1971 - 1974 GMC G35/G3500 Van
Confirmed to Fit
1979 - 1995 GMC G3500
Confirmed to Fit
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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. 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 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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25 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 1975 - 1995 | Chevrolet G20 | — |
| 1970 - 1974 | Chevrolet G20 Van | — |
| 1975 - 1995 | Chevrolet G30 | — |
| 1970 - 1974 | Chevrolet G30 Van | — |
| 1975 - 1980 | Dodge B100 | — |
| 1971 - 1974 | Dodge B100 Van | — |
| 1981 - 1994 | Dodge B150 | — |
| 1995 - 1998 | Dodge B1500 | — |
| 1975 - 1980 | Dodge B200 | — |
| 1971 - 1974 | Dodge B200 Van | — |
| 1981 - 1994 | Dodge B250 | — |
| 1995 - 1998 | Dodge B2500 | — |
| 1975 - 1980 | Dodge B300 | — |
| 1971 - 1974 | Dodge B300 Van | — |
| 1981 - 1994 | Dodge B350 | — |
| 1995 - 1998 | Dodge B3500 | — |
| 1999 - 2003 | Dodge Ram 1500 Van | — |
| 1999 - 2003 | Dodge Ram 2500 Van | — |
| 1999 - 2003 | Dodge Ram 3500 Van | — |
| 1975 - 1978 | GMC G25 | — |
| 1970 - 1974 | GMC G25/G2500 Van | — |
| 1979 - 1995 | GMC G2500 | — |
| 1975 - 1978 | GMC G35 | — |
| 1971 - 1974 | GMC G35/G3500 Van | — |
| 1979 - 1995 | GMC G3500 | — |
Yes, the Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88105 (Part #BBCG88105) is designed to fit the 1975-1995 Chevrolet G20.
The Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88105 (Part #BBCG88105) fits 1975-1995 Chevrolet G20 models. The 2003 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 88105 (Part #BBCG88105) fits the following vehicles: 1975-1995 Chevrolet G20; 1970-1974 Chevrolet G20 Van; 1975-1995 Chevrolet G30; 1970-1974 Chevrolet G30 Van; 1975-1980 Dodge B100; 1971-1974 Dodge B100 Van; 1981-1994 Dodge B150; 1995-1998 Dodge B1500; 1975-1980 Dodge B200; 1971-1974 Dodge B200 Van; 1981-1994 Dodge B250; 1995-1998 Dodge B2500; 1975-1980 Dodge B300; 1971-1974 Dodge B300 Van; 1981-1994 Dodge B350; 1995-1998 Dodge B3500; 1999-2003 Dodge Ram 1500 Van; 1999-2003 Dodge Ram 2500 Van; 1999-2003 Dodge Ram 3500 Van; 1975-1978 GMC G25; 1970-1974 GMC G25/G2500 Van; 1979-1995 GMC G2500; 1975-1978 GMC G35; 1971-1974 GMC G35/G3500 Van; 1979-1995 GMC G3500. Always verify your specific year, make, and model before ordering.
The Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88105 (Part #BBCG88105) 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 kit designed for 3/4-ton and 1-ton pickups and SUVs with leaf springs. It provides up to 5,000 pounds of load-leveling support and allows you to adjust air pressure from 5 to 100 PSI to maintain proper ride height when towing or hauling heavy loads. The air springs use reinforced, commercial-grade convolute bellows manufactured with layers of rubber and cords to control expansion.
The kit is recommended for most 3/4-ton and 1-ton pickups and SUVs with leaf springs. The manual provides specific installation instructions for three frame types: late model GMC/Chevy, early model GMC/Chevy, and Dodge vehicles. For exact vehicle compatibility, contact Air Lift customer service at (800) 248-0892 or visit airliftcompany.com.
No. Installing air springs will not change the weight ratings (GAWR, GCWR, 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. The installation does not alter the gross vehicle weight rating or payload.
Required tools include: hoist or floor jacks, two safety stands, safety glasses, torque wrench, 7/16" and 9/16" open-end or box wrenches, crescent wrench, 3/8" nut driver, ratchet with 9/16", metric, and 1/2" deep well sockets, very sharp 3/8" and 5/16" drill bits, heavy duty drill, hose cutter or sharp knife, and air compressor or compressed air source. You will also need a spray bottle with a dish soap and water solution for leak testing.
The manual does not mention disconnecting the battery. No battery disconnection is required for this installation.
Tighten the 3/8" bolts and 3/8" lock washers that attach the air spring to the upper bracket to 20 lb.-ft. using a torque wrench.
Install and tighten the two 3/8" self-tapping frame bolts to 15 lb.-ft. These bolts attach the upper bracket to the inside of the frame rail.
Tighten the 3/8" nylon lock nuts that secure the lower bracket to the axle using axle straps to 20 lb.-ft., being sure to cross tighten (tighten alternately from side to side).
Tighten the 90° elbow fitting to the top of the air spring finger tight plus 1½ turns. Be careful to only tighten on the metal hex nut and do not over tighten.
Yes. You must drill two 5/16" holes in the inside of the frame rail to mount the upper bracket using 3/8" self-tapping frame bolts. You must also drill 5/16" holes to install the inflation valves at your chosen location (wheel well flanges, license plate recess, under gas cap, or through license plate). Use very sharp 5/16" drill bits and a heavy duty drill. The manual includes a drilling template on page 14 that must be printed at 100% scale to ensure accurate hole placement.
Yes, the jounce bumper must be removed or modified. For late model GMC/Chevy vehicles, use a screwdriver to pry the rubber jounce bumper from the metal bracket, then insert a 1/2" carriage bolt into the jounce bumper track. Some models have a small tab that interferes with upper bracket mounting and must be bent back with a hammer or ground off. For all Dodge and early model GMC/Chevy vehicles, the entire jounce bumper and bracket assembly must be removed by unbolting, chiseling, or grinding so that the bottom of the frame rail is smooth.
Possibly. On some early GMC/Chevy models, a small tab at the end of the jounce bumper slot may interfere with upper bracket mounting and will need to be bent back with a hammer or ground off. On all Dodge and early model GMC/Chevy vehicles, the jounce bumper and bracket assembly must be removed by unbolting, chiseling, or grinding so that the bottom of the frame rail is smooth. These are permanent modifications to the frame.
Drill 5/16" holes to install the inflation valves. The valve should extend approximately 1/2" beyond the hole after installation to allow easy application of a pressure gauge or air chuck.
Choose a convenient location with enough clearance around the inflation valves for an air chuck. Popular locations include: the wheel well flanges, the license plate recess in the bumper, under the gas cap access door, or through the license plate.
Use a sharp knife or hose cutter to make clean, square cuts. Do not use scissors or wire cutters, as these tools may deform the air line and cause leaks around fittings. Do not cut the lines at an angle. A video demonstrating proper air line cutting is available at air-lift.co/cuttingairline.
Do not bend the 1/4" hose at a radius of less than 1" or bend the 3/8" hose at a radius of less than 1½". Do not put side load pressure on the fitting. The hose should be straight beyond the fitting for 1" before bending.
Route the air line along the frame to the fitting on the air spring, maintaining at least 6" of clearance between the air line and the exhaust system. Avoid sharp bends and edges. Use zip ties to secure the air line to fixed points along the chassis. Tie straps should be tight but not pinch the air line. Leave at least 2" of slack to allow for any movement that might pull on the air line.
Cut the air line leaving approximately 12" of extra length with a clean square cut. Insert the air line into the push-to-connect fitting on the air spring. Wiggle the hose back and forth while inserting to ensure the hose bottoms out in the fitting to obtain a good seal.
A heat shield is included in the kit. You must install it to maintain at least 6" of clearance between the air springs and air lines and heat sources such as the exhaust system. Bend the tabs on the heat shield to provide a 1/2" dead air space between the exhaust pipe and heat shield, then attach it to the exhaust pipe using the clamps provided. Bend the heat shield for maximum clearance to the air spring.
The minimum recommended air pressure is 5 PSI. The maximum air pressure is 100 PSI. Never inflate beyond 100 PSI. The air springs can safely be run at zero air pressure when the vehicle is unladen (no load), but for normal operation maintain at least 5 PSI to restore the system to normal ride height.
Loaded vehicles require at least 25 PSI. 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 pounds of load (combined on both springs) for each 1 PSI of pressure. Operating the vehicle below the minimum air spring pressure will void the Air Lift warranty.
No. You must never exceed your vehicle's GVWR, regardless of air spring pressure or other load assist. Exceeding the GVWR is dangerous and voids the Air Lift warranty. Check your vehicle's owner's manual for the maximum load listed for your vehicle. The GVWR is shown on the vehicle's Safety Compliance Certification Label.
Before operating, perform the following checks: (1) Clearance test — inflate to 75-90 PSI and ensure at least 1/2" clearance from tires, brakes, frame, shock absorbers, and brake cables; (2) Leak test — inflate to 75-90 PSI and check all connections for leaks; (3) Heat test — ensure at least 6" clearance from heat sources; (4) Fastener test — recheck all bolts for proper torque; (5) Road test — drive 10 miles and recheck for clearance, loose fasteners, and air leaks; (6) Overnight leak down test — recheck pressure after 24 hours; if pressure drops more than 5 PSI, there is a leak that must be fixed.
Inflate the air springs to 30 PSI. Spray all connections and inflation valves with a solution of 1/5 liquid dish soap and 4/5 water. Spot leaks by looking for bubbles in the soapy water. After testing, deflate the springs to the minimum pressure required to restore normal ride height (at least 5 PSI). Check the air pressure again after 24 hours. A 2-4 PSI loss after initial installation is normal. If the loss is more than 5 PSI, retest for leaks.
Check air pressure weekly. Always maintain normal ride height. If the system develops an air leak, use a soapy water solution to check all air line connections and the inflation valve core before deflating and removing the air spring.
Follow these maintenance guidelines: (1) Check air pressure weekly; (2) Always maintain normal ride height and never inflate beyond 100 PSI; (3) If a leak develops, use soapy water to check all connections before deflating; (4) Loaded vehicles require at least 25 PSI; (5) When increasing load, adjust air pressure to maintain normal ride height; (6) Always add air in small quantities, checking pressure frequently; (7) When raising the vehicle by the frame, reduce pressure to 5 PSI minimum to reduce tension on suspension/brake components; (8) Periodically check fasteners for tightness and inspect air springs for rubbing; (9) Occasionally spray the air springs with a garden hose to remove mud, sand, gravel, or debris. If properly installed and maintained, air springs can last indefinitely.
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. Use of on-board leveling systems do not require deflation or disconnection.
Pressure tuning depends on three factors: level vehicle, ride comfort, and stability. (1) Level vehicle — if headlights shine into trees or vehicle leans to one side, raise air pressure to level it; (2) Ride comfort — if the ride is rough or harsh, try different pressures to find the best comfort; (3) Stability — prioritize stability over a perfectly level and comfortable ride. Stability issues include roll control, bounce, dive during braking, and sponginess, which usually require increased pressure. Start with the vehicle level or slightly above. When in doubt, always add air. If the front dives while braking, increase front air bag pressure. If air bags have bottomed out, increase pressure. It may be necessary to maintain different pressures on each side of the vehicle, with differences up to 50 PSI not uncommon.
If the system won't maintain pressure overnight, there is likely an air leak. Perform a leak test on the air line connections, the threaded connection into the air spring, and all fittings in the control system. Check to make sure air lines are seated in connectors. Inspect fittings with soapy water. If a leak is found, trim 1" off the end of the air line with a clean square cut and reinsert it into the fitting, or re-seal the fitting with thread sealant. Ensure lines are cut straight. A 2-4 PSI loss after initial installation is normal, but if the loss is more than 5 PSI, there is a leak that must be fixed.
Look for a kink or fold in the air line. Replace any air line that has been kinked. Kinked lines prevent proper air flow and cause leaks.
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" off the end of the air line with a clean square cut. Reinsert the air line into the push-to-connect fitting. (2) Check the threaded connection by tightening the swivel fitting another half 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 and 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 by removing the air line from the barbed type fitting. 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 of the fitting. Do not cut off the air line completely as this will usually nick the barb and render the fitting useless.
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, though it requires significant effort. An on-board air compressor system allows for hassle-free control of the air springs. Learn more about Air Lift control systems at www.airliftcompany.com/products/compressor-systems.
If the air springs are properly installed and maintained, they can last indefinitely.
The LoadLifter 5000 Ultimate is recommended for most 3/4-ton and 1-ton pickups and SUVs with leaf springs. Specific fitment varies by vehicle model year and frame type (late model GMC/Chevy, early model GMC/Chevy, or Dodge). Contact Air Lift customer service at (800) 248-0892 or visit airliftcompany.com to confirm fitment for your specific vehicle.
You will need a hoist or floor jacks, safety stands, torque wrench, wrenches (7/16", 9/16", crescent), 3/8" nut driver, ratchet with sockets, sharp 3/8" and 5/16" drill bits, heavy duty drill, hose cutter or sharp knife, air compressor, and a spray bottle with dish soap and water solution.
Tighten 3/8" bolts on the upper bracket to 20 lb.-ft., 3/8" self-tapping frame bolts to 15 lb.-ft., and axle strap lock nuts to 20 lb.-ft. (cross tighten). Tighten the 90° elbow fitting finger tight plus 1½ turns only.
Never exceed 100 PSI. The minimum recommended pressure is 5 PSI. Loaded vehicles require at least 25 PSI. Do not exceed your vehicle's GVWR regardless of air pressure.
Inflate to 75-90 PSI and check for at least 1/2" clearance from tires, brakes, frame, and shock absorbers. Test all connections for leaks using soapy water. Verify at least 6" clearance from the exhaust. Recheck all bolt torque. Drive 10 miles and recheck for clearance, leaks, and loose fasteners.
Check air pressure weekly. Recheck after 24 hours of initial installation and after 30 days or 500 miles. A 2-4 PSI loss after initial installation is normal; if loss exceeds 5 PSI, there is a leak that must be fixed.
Use a sharp knife or hose cutter to make clean, square cuts. Do not use scissors or wire cutters. Do not cut at an angle. Do not bend the hose at a radius less than 1" (1/4" hose) or 1½" (3/8" hose).
Yes. On late model GMC/Chevy, pry it out and insert a 1/2" carriage bolt into the track. On Dodge and early GMC/Chevy, remove the entire assembly by unbolting, chiseling, or grinding so the frame rail is smooth. Some models have a tab that must be bent or ground off.
Cause: Improperly installed air line, or air line has holes or cracks. Solution: Perform a leak test on the air line connections, the threaded connection into the air spring, and all fittings in the control system. Check to make sure air lines are seated in connectors. Inspect fittings with soapy water. Trim hose or re-seal fitting. Ensure lines are cut straight. A 2-4 PSI loss after initial installation is normal; if loss exceeds 5 PSI, there is a leak that must be fixed.
Cause: Kink or fold in the air line. Solution: Look for a kink or fold in the air line. Replace any air line that has been kinked.
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