Launching harder, reducing wheel hop, and adding cornering consistency to your 1968-1972 GM A-body is easy with a Rear Suspension Kit from BMR Suspension. Stock stamped steel control arms with soft rubber bushings deflect under load and absorb power instead of transferring it to the tires. BMR?s polyurethane, non-adjustable Rear Suspension Kit (RSK012) consists of upper and lower control arms for early A-bodies. Manufactured from heavy-duty 1x3-inch, 0.120-inch wall rectangular steel tubing, the lower control arms provide all the strength you?ll need for any performance application. The upper control arms are manufactured from 1.625-inch diameter, 0.120-inch wall DOM steel tubing, strong enough for any compression load. Greasable, 95-durometer polyurethane bushings add a solid, more responsive feel over the stock rubber bushings. BMR?s bushings are internally fluted, which keeps grease in the bushing, even under heavy load. These flutes also direct grease to the outer edge of the bushing, keeping the thrust surface lubricated. This efficient lubrication ensures quiet, reliable operation over the life of the bushings.