The Timbren Suspension Enhancement System for 1990 Ford F Super Duty rear uses hollow rubber cushions to absorb road shock and self-adjust to uneven loads, helping keep the vehicle level while towing or hauling. The bolt-on installation requires no airlines, fittings, or drilling and is completed with common hand tools. With an 8600 lb rear capacity, it reduces sag and squatting, improves handling and carries a lifetime warranty.
Timbren 1990 Ford F Super Duty Rear Suspension Enhancement System