Mastodon Tubular Rear Suspension Kit GM A-Body 68-72 Chevelle GTO

Rear tubular trailing arm upgrade kit for 1968–1972 GM A-body vehicles. Replaces the factory stamped-steel upper and lower trailing arms with TIG-welded tubular arms that positively locate and control the rear axle — the standard fix for the wallowing axle wind-up that limits these chassis under hard launches and corner exits.

Constructed from .120" wall steel tubing with greaseable polyurethane bushings. No welding or modifications required — direct bolt-in.

Specifications:

• Fitment: 1968–1972 GM A-body (Chevelle, El Camino, GTO, Skylark, Cutlass, 442)
• Material: .120" wall TIG-welded steel tubing
• Bushings: Greaseable polyurethane
• Includes: Upper and lower trailing arms, hardware
• Install: Bolt-in, no welding required