The J-cars have a semi-independent rear suspension system which consists of an axle with trailing arms and two coil springs, shock absorbers, upper spring insulators and spring compression bumpers. The axle assembly attaches to the body through a rubber bushing located at the front of each control arm. The brackets are integral with the underbody side rails. A stabilizer bar is available as an option.
Two coil springs are used, each being retained between a seat in the underbody and one on the control arm. A rubber cushion is used to isolate the coil spring upper end from the underbody seat, while the lower end sits on a combination bumper and spring insulator.
The double acting shock absorbers are filled with a calibrated amount of fluid and sealed during production. They are non-adjustable, non-refillable and cannot be disassembled.
A single unit hub and bearing assembly is bolted to both ends of the rear axle assembly; it is a sealed unit and must be replaced as one if found to be defective.