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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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. 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 rear 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. Requires no drilling into frame. 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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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2008 - 2010 | Ford F-450 Super Duty | Non: Commercial Chassis |
The Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88347 (Part #BBCG88347) fits 2008-2010 Ford F-450 Super Duty models. The 2010 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88347 (Part #BBCG88347) is designed to fit the 2008-2010 Ford F-450 Super Duty.
The Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88347 (Part #BBCG88347) fits the following vehicles: 2008-2010 Ford F-450 Super Duty. Always verify your specific year, make, and model before ordering.
The Air Lift LoadLifter 5000 ULTIMATE with internal jounce bumper 88347 (Part #BBCG88347) 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 that provides up to 5,000 pounds of load-leveling support for 3/4-ton and 1-ton pickups and SUVs with leaf springs. It uses reinforced, commercial-grade convolute bellows and allows air adjustability from 5–100 PSI to help level the vehicle under load and improve ride comfort and handling.
No. Installing air springs does not change the gross vehicle weight rating (GVWR), payload, or any other weight ratings of your vehicle. You must still check your vehicle's owner's manual and never exceed the maximum load listed for your vehicle. Exceeding GVWR is dangerous and voids the Air Lift warranty.
Kit 88347 is designed for most 3/4-ton and 1-ton pickups and SUVs with leaf springs. The manual does not list specific year, make, model or cab/bed configurations. Contact Air Lift customer service at (800) 248-0892 to confirm fitment for your vehicle.
The kit includes: 2 bellows (part 58496), 2 upper brackets (07635), 2 lower brackets (03108), 4 roll plates (11967), 2 axle clamp bars (01531), 2 swivel elbow fittings (21837), 8 hex cap screws 3/8"-24 x 7/8" (17203), 14 flat washers 3/8" (18444), 8 lock washers 3/8" (18427), 6 nylon lock nuts 3/8" (18435), 4 carriage bolts 3/8"-16 x 7" (17163), 2 carriage bolts 3/8"-16 x 1.5" (17156), 1 air line assembly (20086sub), 6 tie straps (10466), 2 valve caps (21230), 2 flat washers 5/16" (18405), 2 rubber washers (21234), 2 star washers (18411), 4 hex nuts 5/16" (21233), and 1 heat shield kit (34365).
Required tools include: hoist or floor jacks, 2 safety stands, safety glasses, torque wrench, 5/16" open-end or box wrench, 7/16" open-end or box wrench, 9/16" open-end or box wrench, crescent wrench, ratchet with 9/16", metric and 1/2" deep well sockets, 3/8" and 5/16" drill bits (very sharp), heavy duty drill, hose cutter or sharp knife, air compressor or compressed air source, and spray bottle with dish soap/water solution.
Yes. You must remove the stock jounce bumpers on the frame above the axle and discard them. The upper bracket and bellows assembly will be mounted using the existing jounce bumper hole in the frame.
Yes. On the driver side, you must temporarily remove the vent/brake line junction block banjo bolt from the axle and the bolt holding the brake line to the spring perch on the driver side of the rear differential. This is necessary to position the lower bracket. After positioning the lower bracket, you must reattach the brake line to the spring perch and reattach the banjo bolt.
It may be necessary to lower the axle for positioning the upper bracket and bellows assembly into the frame rail, but the manual does not specify when this is required. Follow the positioning steps and lower the axle if needed to fit the assembly flush to the bottom of the frame.
1. Set a roll plate (D) on top of the air spring with the radiused (rounded) edge facing the air spring. 2. Position the assembly on the axle with the bracket forward of the bellows fully in the slot (mounting bolts will be to the rear). 3. Attach the upper bracket to the bellows using a 3/8"-24 bolt (G), lock washer (I), and flat washer (H). Adjust the bracket forward or rearward depending on which side you are mounting (driver or passenger side per Figure 2). 4. Tighten securely.
1. Insert two carriage bolts (L) into the lower bracket (C) and set both lower brackets onto the axle. 2. Ensure the slots and grooves on the lower brackets are facing the rear of the vehicle and correspond with the brake line. 3. Set the clamp bar (E) onto the carriage bolt (L) and cap with a 3/8" flat washer (H) and nylon lock nut (J). Leave loose at this time. You may need to slightly move the brake line on the driver side axle to align the lower bracket into position.
1. Insert the 3/8" carriage bolt (M) into the slot on the middle of the upper bracket. 2. Position the corresponding assembly (driver or passenger side) under the frame and insert the carriage bolt up through the existing jounce bumper hole in the frame. 3. Once the upper bracket is flush to the bottom of the frame, cap the carriage bolt (M) with a flat washer (H) and a 3/8" nylon lock nut (J). 4. Tighten securely at this time. 5. Repeat for the other side.
1. With the clamp bar still loose on the lower bracket, line up the holes in the roll plate/bellows with the holes in the lower bracket. 2. Insert two 3/8" bolts (G), lock washers (I), and flat washers (H). Tighten securely. 3. Position the lower bracket (in or out) to line up the bellows so that it is perpendicular to both the upper and lower brackets. 4. Torque the clamp bar nuts to 16 ft/lbs. 5. Repeat for the opposite side. 6. Reattach the brake line to the spring perch. 7. Reattach the vent/brake line junction block banjo bolt back into the axle and tighten both securely.
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. Drill 5/16" holes to install the inflation valves at your chosen location.
1. Drill 5/16" holes at your chosen location. 2. Place a 5/16" nut and star washer on the air valve, leaving enough valve in front of the nut to extend through the hole and have room for the rubber washer, flat washer, and 5/16" nut and cap. Approximately 1/2" of valve should be exposed after installation to easily apply a pressure gauge or air chuck. 3. Push the inflation valve through the hole. 4. Use the rubber washer, flat washer, and another 5/16" nut to secure it in place. 5. Tighten the nuts to secure the assembly.
1. Cut the air line assembly in two equal lengths. 2. Route the air line along the frame to the fitting on the air spring, maintaining at least 6" clearance from the exhaust system. 3. Avoid sharp bends and edges. 4. Use zip ties to secure the air line to fixed points along the chassis; keep ties tight but do not pinch the air line. 5. Leave at least 2" of slack to allow for suspension movement. 6. Cut off the air line, leaving approximately 12" of extra air line with a clean square cut. 7. Insert the air line into the air fitting (push-to-connect). 8. Wiggle the hose back and forth while inserting to ensure it bottoms out in the fitting for a good seal.
1. Bend the heat shield tabs to provide a dead air space (approximately 1/2") between the exhaust pipe and heat shield. 2. Attach the heat shield to the exhaust pipe using the clamps. 3. Bend the heat shield for maximum clearance to the air spring.
Drill 5/16" holes to install the inflation valves. Use very sharp 5/16" drill bits and a heavy duty drill.
Use a sharp knife, hose cutter, or razor blade 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. When removing air lines from barbed fittings, do not cut the line completely; instead, cut a few inches in front of the fitting and use pliers or vice grips to pull/twist the line off to avoid nicking the barb.
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 1.5". Do not put side load pressure on the fitting. The hose should be straight beyond the fitting for at least 1" before bending.
Torque the clamp bar nuts to 16 ft/lbs after positioning the lower bracket so that the bellows is perpendicular to both the upper and lower brackets.
The maximum air pressure is 100 PSI. Never inflate beyond 100 PSI. However, the actual air pressure needed depends on load and GVWR; you should adjust pressure to maintain normal ride height while driving.
The recommended minimum air pressure is 5 PSI for normal operation. The system can safely be run at zero air pressure when the vehicle is unladen (no load). However, loaded vehicles require at least 25 PSI. Operating the vehicle below the minimum air spring pressure voids the Air Lift warranty.
The springs in this kit will support approximately 40 pounds 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 and the load distribution.
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. For information about Air Lift control systems, visit www.airliftcompany.com/products/compressor-systems.
Single-path systems (such as Wireless One or SmartAir II) use a T-fitting to connect the two air springs together. Dual-path systems (such as Wireless Air) have separate air lines to the air control system for each spring. Choose the system that matches your control setup.
Maintain at least 6" of clearance between the air lines and the exhaust system. If a heat shield is included in the kit, install it. If there is no heat shield but one is required, call Air Lift customer service at (800) 248-0892.
Inflate the air springs to 75–90 PSI and ensure there is at least 1/2" clearance from anything that might rub against each sleeve. Check the tire, brakes, frame, shock absorbers, and brake cables.
Loaded vehicles require at least 25 PSI. A "loaded vehicle" refers to a vehicle with a heavy bed load, a trailer, or both. Never exceed GVWR, regardless of air spring, air pressure, or other load assist.
Loads carried behind the axle (including tongue loads) require more leveling force (pressure) than those carried directly over the axle. When increasing load, always adjust air pressure to maintain normal ride height. Increase or decrease pressure from the system as necessary to attain normal ride height for optimal ride and handling.
The vehicle can be lifted on a hoist for short-term service work such as tire rotation or oil changes without damaging the air springs. 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. If you need to raise the vehicle by the frame, make sure the system is at minimum pressure (5 PSI) to reduce tension on the suspension/brake components. Use of on-board leveling systems do not require deflation or disconnection.
1. Inflate the air spring to 30 PSI. 2. Spray all connections and the inflation valves with a solution of 1/5 liquid dish soap and 4/5 water. 3. Spot leaks by looking for bubbles in the soapy water. 4. After the test, deflate the springs to the minimum pressure required to restore the system to normal ride height (do not deflate to lower than 5 PSI). 5. Check the air pressure again after 24 hours. A 2–4 PSI loss after initial installation is normal. Retest for leaks if the loss is more than 5 PSI.
1. Clearance test: Inflate to 75–90 PSI and ensure at least 1/2" clearance from tire, brakes, frame, shock absorbers, and brake cables. 2. Leak test: Inflate to 75–90 PSI and check all connections for leaks; all leaks must be eliminated before road testing. 3. Heat test: Ensure at least 6" clearance from heat sources; install heat shield if included. 4. Fastener test: Recheck all bolts for proper torque. 5. Road test: Drive the vehicle 10 miles and recheck for clearance, loose fasteners, and air leaks. 6. Overnight leak down test: Recheck air pressure after 24 hours; if pressure drops more than 5 PSI, there is a leak that must be fixed.
Recheck the air spring system after 30 days or 500 miles, whichever comes first. If any part shows signs of rubbing or abrasion, identify and move the source if possible. If relocation is not possible, the air spring may need to be remounted. Check all fasteners for tightness.
Check air pressure weekly to maintain optimal performance and safety.
1. Check air pressure weekly. 2. Always maintain normal ride height; never inflate beyond 100 PSI. 3. If the system develops an air leak, 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 before deflating and removing the air spring. 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, ensure the system is at minimum pressure (5 PSI). 8. Periodically check fasteners for tightness and air springs for signs of rubbing; realign if necessary. 9. Periodically spray the air springs with a garden hose to remove mud, sand, gravel, or other debris.
If the air springs are properly installed and maintained, they can last indefinitely.
Pressure determination comes down to three things: level vehicle, ride comfort, and stability. 1. Level vehicle: If headlights are shining into the trees or the vehicle is leaning to one side, raise the air pressure to level it. 2. Ride comfort: If the vehicle has a rough or harsh ride, try different pressures to find the best comfort. 3. Stability: Stability should be the priority for safety; you may need to sacrifice a perfectly level and comfortable ride. Increase pressure to address roll control, bounce, dive during braking, and sponginess.
Check for leaks. Leak test the air line connections, the threaded connection into the air spring, and all fittings in the control system. If there is an air spring or air line leak with a compromised fitting seal or air line, check to make sure air lines are seated in connectors. Inspect fittings with soapy water. Trim the hose or re-seal the fitting. Ensure lines are cut straight.
Look for a kink or fold in the air line. Replace any air line that has been kinked.
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, ensuring 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 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.
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 pliers or vice grips to pull/twist the air line off the fitting. Do not cut off the air line completely, as this will usually nick the barb and render the fitting useless.
Kit 88347 is designed for most 3/4-ton and 1-ton pickups and SUVs with leaf springs. Contact Air Lift customer service at (800) 248-0892 to confirm fitment for your specific vehicle.
You need: hoist or floor jacks, 2 safety stands, safety glasses, torque wrench, wrenches (5/16", 7/16", 9/16"), crescent wrench, ratchet with sockets, drill with 3/8" and 5/16" bits, hose cutter or sharp knife, air compressor, and spray bottle with soapy water.
Yes, you must remove the stock jounce bumpers on the frame above the axle and discard them. The upper bracket will be mounted using the existing jounce bumper hole.
Yes. You must drill 5/16" holes to install the inflation valves at your chosen location (wheel well, bumper recess, gas cap door, or license plate).
Torque the clamp bar nuts to 16 ft/lbs after positioning the bellows perpendicular to both brackets.
Minimum 5 PSI for normal operation (can run at 0 PSI unladen). Loaded vehicles require at least 25 PSI. Maximum 100 PSI. Adjust pressure to maintain normal ride height.
Maintain at least 6" clearance between air lines and the exhaust system. Install the included heat shield.
Inflate to 30 PSI and spray all connections with a 1/5 dish soap and 4/5 water solution. Look for bubbles. A 2–4 PSI loss after 24 hours is normal; more than 5 PSI indicates a leak.
Check air pressure weekly. Always maintain normal ride height and never exceed 100 PSI.
Cause: Improperly installed air line, air line has holes or cracks, or fitting seal is compromised. Solution: Leak test the air line connections, the threaded connection into the air spring, and all fittings in the control system. Check that air lines are seated in connectors. Inspect fittings with soapy water. Trim hose or re-seal fitting. Ensure lines are cut straight.
Cause: Kink or fold in the air line. Solution: Look for a kink or fold in the air line and replace any air line that has been kinked.
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