ONLY the GNXs received the #5 upper body bushings when these cars were new. None of the 1984-1987 Regals or Turbo Regals received these 11/4″ tall, screw-in upper body bushings. These bushings sit between the body and the upper frame, just in front of the rear axle. They help secure the body to the frame for a tight fit.
No bolts are required to install the bushings. One end is threaded, which seats in a large hole in the top of the frame rail. The other end has a slight point, which seats into the body.
Any improvements you can make to stiffen the body to the frame will translate into less rattles and cracks occurring on the body, especially around the roof pillar area. We highly recommend you install these upper body bushings, along with lower body bushings and a rear seat brace kit to compliment your suspension upgrade.
1978-1987 Turbo Regal – UPPER Body GNX-Style Bushings (2)
NOTE – We recommend these bushing be installed by a qualified body shop, since the body needs to be lifted off the frame in the rear.