QA1, via Marken Performance, now has expanded the rear trailing arms to now include 73-77 GM A-Body vehicles.  See chart below for more applications.

   If you drive a Chevelle, Cutlass, Regal or any other GM A-Body vehicle, these newly added American-made trailing arms will help keep your tires planted for increased traction, stability and handling. QA1's modern design will not flex and distort like factory stamped steel trailing arms. 

   

1.25" diameter, 0.120" wall steel tubing construction offers increased strength and flex elimination
Polyurethane bushings are used on both ends for increased performance over stock rubber bushings

Allows easy rear suspension adjustments without having to remove the arms from the vehicle
Polyurethane differential bushings are used to replace soft OE units, while spherical bearings with UHMW polyethylene bushings are used on the chassis end to eliminate bushing bind

Strong boxed style with OE sway bar mounting points, made from 0.120" wall, cold rolled steel tubing
Polyurethane bushings are used on both ends for increased performance over stock rubber bushings