What is the Difference between the # AL95FJ and # AL58KV AirLift Springs for My 2021 Ford F-350?

Expert Reply:

Both parts are a fit for a 2021 Ford F-350, but the Air Lift # AL95FJ Load Lifter 5000 is a fit for single rear wheel trucks (SRW) and the # AL58KV is a fit for Dual Rear Wheel (DRW) trucks.

You might also be interested in an on-board compressor system like part # AL25856. A compressor system would allow you to add or remove pressure from the system as the load and the road surface dictates, all from the comfort of the truck's cab. We also have a wireless compressor that you can use with your smart device. That is the Air Lift WirelessAIR Compressor System for Air Helper Springs # AL74000.

I've linked to a product video for the Load Lifter 5000, as well as to a video showing the installation of the compressor system I mentioned.