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Offering up to 5,000 pounds of load-leveling capacity, the LoadLifter 5000 Ultimate kit from Air Lift will make towing and hauling with your 2020 F-250 F-350 4WD SRW a breeze.
Offering up to 5,000 pounds of load-leveling capacity, the LoadLifter 5000 Ultimate kit from Air Lift will make towing and hauling with your F-250 F-350 4WD SRW a comfortable and stress-free experience. Our fully-adjustable air springs are the perfect partner for your vehicle. What sets the LoadLifter 5000 Ultimate kit apart is the built-in jounce bumper, which prevents bottoming out, eliminating squat and trailer sway, even on rough roads. This added feature makes the kit the ULTIMATE in ride comfort and protection. As experts in air suspension products for 70 years, Air Lift is committed to delivering quality load support parts that last. The key suspension components have all been torture-tested to ensure the highest quality, longevity, and customer satisfaction. With a lifetime warranty and 60-Day Ride Satisfaction Guarantee, you can purchase this kit with peace of mind. Whether it is towing or hauling, the LoadLifter 5000 Ultimate kit from Air Lift will give you the ability to use your 2020 F-250/350 4WD SRW with added safety and comfort. Do not exceed vehicle’s gross vehicle weight rating (GVWR).
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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2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2020 - 2022 | Ford F-250 Super Duty | Single Rear Wheel |
| 2020 - 2022 | Ford F-350 Super Duty | Single Rear Wheel |
The Air Lift LoadLifter 5000 Ultimate air spring kit w/internal jounce bumper 88352 (Part #BBCG88352) fits the following vehicles: 2020-2022 Ford F-250 Super Duty; 2020-2022 Ford F-350 Super Duty. Always verify your specific year, make, and model before ordering.
The Air Lift LoadLifter 5000 Ultimate air spring kit w/internal jounce bumper 88352 (Part #BBCG88352) fits 2020-2022 Ford F-250 Super Duty models. The 2022 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 air spring kit w/internal jounce bumper 88352 (Part #BBCG88352) is designed to fit the 2020-2022 Ford F-250 Super Duty.
The Air Lift LoadLifter 5000 Ultimate air spring kit w/internal jounce bumper 88352 (Part #BBCG88352) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The LoadLifter 5000 series kits (57352, 88352, 89352) are designed for Ford SD F-250/F-350 4WD SRW (Single Rear Wheel) applications. The kits are not compatible with dual rear wheel (DRW) vehicles. Confirm your truck is 4WD and has a single rear wheel configuration before purchasing.
The LoadLifter 5000 series air springs provide up to 5,000 pounds (2,268 kg) of load-leveling support. Air pressure is adjustable from 5 to 100 PSI (0.34 to 7 BAR). The air springs are manufactured with reinforced, commercial-grade single or double convolute bellows with layers of rubber and cords that control growth.
There are three versions: (1) Standard LoadLifter 5000 — zinc-plated steel roll plates and black nylon air lines (kit 57352); (2) LoadLifter 5000 Ultimate — black powder-coated roll plates and black nylon air lines (kit 88352); (3) LoadLifter 5000 Ultimate Plus — stainless steel roll plates, braided stainless steel air lines, and stainless steel air spring mounting hardware (kit 89352). Identify your kit by examining the roll plates and air lines. Air Lift also offers two Ultimate Plus upgrade kits: 52300 (braided stainless steel air line and fittings) and 52301 (stainless steel roll plates, air spring mounting hardware, braided stainless steel air lines and fittings).
Required tools include: standard and metric open-end or box wrenches (set), ratchet, standard and metric sockets (set), 5/16" drill bit (very sharp), 9/16" crow's foot adapter, 9/16" ratchet combo wrench, heavy-duty drill, torque wrench, standard and metric hex-key wrenches (set), flat-tip screwdriver, hose cutter/razor blade/sharp knife, hoist or floor jacks, two safety stands, safety glasses, air compressor or compressed air source, and spray bottle with dish soap/water solution.
The manual does not specify whether the battery must be disconnected. Contact Air Lift customer service at (800) 248-0892 or email service@airliftcompany.com for clarification on this step.
Raise the vehicle and support it using safety stands or equivalent so that the axle can be safely dropped away from the frame. This is necessary to position the air spring assembly between the axle and frame.
Yes. Unbolt and remove the jounce bumper assembly from under the frame on both sides before proceeding with air spring installation.
Clip-in studs are factory fasteners in the frame. Yes, you must remove all four studs (two from each side) by prying on the hinged end with a screwdriver and pulling them out from the frame. These are replaced with universal nuts that will hold the upper frame brackets.
Torque the upper frame bracket hardware (M10-1.5 x 35mm button-head cap screws) to 38 lb.-ft. (52 Nm).
The slot on the side of the bracket should be inboard of the frame rail (away from the leaf spring and tire). The elongated hole should be toward the front of the truck.
Torque the 3/8"-24 x 7/8" hex-cap screw hardware to no more than 20 lb.-ft. (27 Nm) when attaching the upper air spring bracket to the air spring.
When installing the upper air spring bracket onto each air spring, use one set of holes on the first assembly and the opposite holes on the second assembly. This creates left-hand and right-hand units. The driver's (left) side and passenger's (right) side assemblies are mirror images of each other.
Torque the 3/8"-24 x 3/4" flat-head socket-cap screws to no more than 20 lb.-ft. (27 Nm) when attaching the lower bracket main plate to the air spring.
Insert the 3/8"-16 x 1" carriage bolt through the top of the lower bracket, flip the assembly over, and install the lower bracket cup onto the lower bracket main plate. Cap with a 3/8"-16 serrated flange lock nut. Snug the bolt down but leave it loose enough for the bracket to move freely in the slot.
The lower bracket cup should rest on the jounce bumper strike plate for single rear wheel (SRW) applications or on the axle for dual rear wheel (DRW) applications. Since this kit is for SRW only, it rests on the jounce bumper strike plate.
Torque the U-bolt hardware (3/8" serrated flange lock nuts) to 10 lb.-ft. (14 Nm). First snug the bolts evenly just enough to hold the lower bracket main plate flush against the stock U-bolts, then finish tightening by torqueing to the final specification.
Torque the 3/8" serrated flange lock nuts on the upper air spring bracket carriage bolts to 31 lb.-ft. (42 Nm). Snug the bolts down first, then torque to the final specification.
Evenly torque the lower clamp bar hardware (3/8" serrated flange lock nuts) to 16 lb.-ft. (22 Nm).
Torque the nut on both sides to 32 lb.-ft. (43 Nm).
Yes. On vehicles that have a sway bar, cut the front carriage bolt just below the nut so it does not contact the sway bar. For sway bar applications, it is acceptable to tighten the front carriage bolt hardware more than the rear to gain more clearance on the sway bar.
Ensure the 90-degree fittings each point inboard toward the center of the vehicle. This is checked before raising the axle or lowering the body to align the upper frame bracket carriage bolts with the air spring bracket holes.
Push the hard brake line away from the lower bracket carriage bolt if it is resting on it. If necessary, pull or push the hard brake line away and tie off the ABS line to gain clearance. On the passenger side, it may be necessary to pull the ABS tree mount out of the top of the bracket and re-attach it to the back of the bracket.
Recommended locations for Schrader valves are: (1) inside the fuel tank filler door, (2) inside rear wheel wells, or (3) license plate or rear bumper area. For LoadLifter 5000 Ultimate Plus kits, the recommended location is the rear bumper area or license plate. Drill a 5/16" (8 mm) hole if necessary at the chosen location.
Cut the nylon air line in half using a razor blade or hose cutter, making clean, square cuts. Do not use scissors or wire cutters. The minimum bend radius for the air line is 1 inch (25 mm).
Use zip ties to secure the nylon air line to fixed points along the chassis. Do not pinch or kink the air line. Leave at least 2 inches (51 mm) of slack in the air line to allow for any movement that might pull on the air line. The minimum bend radius is 1 inch (25 mm).
Use zip ties to secure the braided stainless steel air line to fixed points along the chassis every 6 to 8 inches (152 to 203 mm). Leave at least 2 inches (51 mm) of slack to allow for any movement that might pull on the air line. The braided stainless steel air line cannot be trimmed.
Tighten the air line hex nut finger-tight, then use 2 wrenches to turn 1 additional flat (1/6 of one full turn). Do not overtighten. The easiest way to tighten the fitting is off the vehicle before final installation.
No. The braided stainless steel air line cannot be trimmed. Coil and secure any excess air line in an area where it will not be susceptible to damage.
Keep at least 6 inches (150 mm) of clearance between all air lines and the exhaust system. Avoid sharp bends and edges. If a heat shield was 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.
Slide the air line thermal sleeve over the nylon air line and place it where the air line is closest to the exhaust. Attach the metal heat shield to the exhaust where it is closest to the air spring, maintaining at least 1/2 inch (13 mm) of dead air space between the shield and exhaust. Use double hose clamps if necessary and bend the tabs as shown.
Yes. Keep the braided stainless steel air line away from the fuel line, brake lines, and electrical wires to prevent damage and ensure safe operation.
The maximum air pressure is 100 PSI (7 BAR). Never inflate beyond this pressure. Although the air springs are rated at a maximum inflation pressure of 100 PSI, the air pressure actually needed is dependent on load and gross vehicle weight rating.
The minimum recommended pressure is 5 PSI (0.34 BAR).
No. For safety and to prevent possible damage to the vehicle, do not exceed the maximum gross vehicle weight rating (GVWR) or payload rating as indicated by the vehicle manufacturer. Although the air springs provide load-leveling support, they do not increase the vehicle's weight capacity.
Inflate the air springs to 40-60 PSI (2.8-4.1 BAR) and make sure there is at least 1/2 inch (13 mm) clearance from anything that might rub against each sleeve. Be sure to check the tire, brakes, frame, shock absorbers, and brake cables.
Inflate the air springs to 40-60 PSI (2.8-4.1 BAR) and check all connections for leaks using a soapy water solution. All leaks must be eliminated before the vehicle is road tested.
Be sure there is sufficient clearance from heat sources, at least 6 inches (152 mm) for air springs and air lines. If a heat shield was 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.
Check air pressure weekly to ensure the system is operating at the correct pressure for your load.
After 500 miles (800 km), recheck all bolts for proper torque. This is part of the post-installation inspection process to ensure all hardware remains secure.
Use a soapy water solution to check all air line connections and the inflation valve core before deflating and removing the air spring. This will help identify the source of the leak so it can be repaired.
Yes. Always maintain normal ride height. Never inflate beyond 100 PSI (7 BAR). Proper air pressure should be adjusted based on your load and vehicle's GVWR.
Yes, all three kits fit Ford SD F-250/F-350 4WD SRW (Single Rear Wheel) vehicles. The kits differ only in finish: 57352 has zinc-plated roll plates and nylon air lines; 88352 has black powder-coated roll plates and nylon air lines; 89352 has stainless steel roll plates and braided stainless steel air lines.
Yes. You must drill a 5/16" (8 mm) hole for the Schrader valve location. A sharp 5/16" drill bit and heavy-duty drill are required tools.
Yes. The jounce bumper assembly must be unbolted and removed from under the frame on both sides before installing the air spring assemblies.
Upper frame bracket: 38 lb.-ft. (52 Nm); air spring bracket: 20 lb.-ft. (27 Nm); lower bracket: 20 lb.-ft. (27 Nm); upper air spring bracket carriage bolts: 31 lb.-ft. (42 Nm); lower clamp bar: 16 lb.-ft. (22 Nm); U-bolts: 10 lb.-ft. (14 Nm); final lower bracket nut: 32 lb.-ft. (43 Nm).
Maximum air pressure is 100 PSI (7 BAR). Check air pressure weekly. Never exceed the maximum pressure or your vehicle's GVWR or payload rating.
Perform clearance test (1/2" minimum from sleeves), leak test (inflate to 40-60 PSI and check all connections), heat test (6" minimum clearance from heat sources), and fastener test (recheck bolts after 500 miles). Drive 10 miles and recheck for clearance, loose fasteners, and leaks.
Use a soapy water solution to check all air line connections and the inflation valve core. The soapy water will bubble at the location of the leak. Once identified, the leaking connection or valve core can be repaired or replaced before deflating and removing the air spring.
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