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The Timbren Suspension Enhancement System for 1990 Ford F Super Duty rear adds a rubber, self-adjusting cushion that absorbs road shocks and helps eliminate squatting and sag. It installs with basic tools—no airlines or drilling—and improves towing stability. Rated for 8000 lbs, this rear kit suits severe service and heavy hauling while offering lifetime warranty coverage and reduced maintenance compared with air systems.
Timbren 1990 Ford F Super Duty Rear Suspension Enhancement System
