Detroit Speed - Rear Speed Kit 1The Detroit Speed Speed Kit 1 Rear Suspension Kit is a terrific way to upgrade the rear suspension on the 1978 1988 G body applications. Detroit Speed's unique G body rear trailing links incorporate our patented Swivel Link system. These unique trailing arms eliminate bind allowing the rear suspension to fully articulate without the use of noisy spherical rod ends. The Swivel Link Rear Trailing Links allow for easy pinion angle adjustment for improved