Welded kit shown in thumbnail image. To purchase a welded kit, you must select "welded" in the "available options" list at the bottom of this description.

GM has used a triangulated rear four link in many of their cars for decades. The design eliminates the Panhard bar. To accommodate many frame widths, the formed upper frame brackets have to be trimmed. Bars are 1" heavy-wall seamless tubing, tapped one end 5/8-18 RH and notched for the 10092 urethane bushing tube on the other end. The rear axle brackets are easy to fold by hand along the laser-cut slits. This provides a corner-to-corner weld line. Coil-overs can be mounted in one of three holes. Assembly and installation tips are provided. #WS21850

Parts included:
Listed by: Description, Part #, Quantity Required
Frame bracket, formed, upper, 218590D, 1
Frame bracket, formed, upper, 218590P, 1
Frame bracket plate, formed, 222016P, 1
Frame bracket plate, formed, 222016D, 1
Frame bracket, formed, 218502, 2
Adjuster stud, straight, 100810, 4
Tube for urethane bushing, 10092, 8
Bar, 1'' x 16-1/4'', tapped and notched, 1261620, 2
Bar, 1'' x 23-1/4'', tapped and notched, 1262320, 2
Tube (inner) for urethane bushings, 18908, 8
Urethane bushing half, 1203, 16
Axle tab, upper, 21851, 4
Axle bracket plate, lower, formed, 21852, 2
Block, 3-hole, 21854, 2
Bolt, 1/2-20 x 2-1/4'', HC-178, 8
Nut, 1/2-20 thin nylok, 178-039, 8
Nut, 5/8-18 jam, NJ-63, 4