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Timbren Suspension Enhancement System for 1975 GMC P35 rear uses a rubber spring to absorb road shocks and automatically adjust to uneven loads, reducing squatting and improving stability. Rated for 8600 lbs., the kit features a bumpstop over U‑bolt pad configuration and bolts on without drilling or airlines. Its maintenance‑free rubber construction and lifetime warranty support heavy towing and commercial use.
Timbren 1975 GMC P35 Rear Suspension Enhancement System
