Mastodon 180-230lb Coil Over Kit Rear Adjustable Conversion Kit, GM 1967-72 A Body

Adjustable rear coilover conversion kit for the GM A-body chassis (1967–1972). Replaces the factory rear coil-and-shock setup with a true coilover, giving full control over ride height and the spring rate the car deserves once you’ve added power and grip.

Uses a 180–230 lb spring rate — well-suited to street and pro-touring use. Nitrogen-charged shocks with polished silver bodies, 2.5″ coil ID, and adjustable lower mount for fine-tuning ride height.

Specifications:

• Fitment: 1967–1972 GM A-body (Chevelle, El Camino, GTO, Cutlass, Skylark, 442)
• Spring rate: 180–230 lb (street / mild performance)
• Shock body length: ~11.5″ compressed / 16.5″ extended
• Coil ID: 2.5″
• Construction: Hardened steel, polished silver finish, nitrogen-charged
• Adjustment: Threaded body for ride-height adjustment