See Figures 1, 2 and 3
All Chrysler front wheel drive vehicles (except Premier) use a flexible beam axle with trailing links and coil (or air) springs. The blade type trailing arms, attached to body mounted pivots, provide fore and aft location of the suspension while a Track Bar provides lateral location.
Located in line with the spindles, an open channel section beam axle assures that the rear tires remain parallel to each other and essentially perpendicular to the road surface. While being able to twist as one wheel moves vertically with respect to the other.
Roll resistance is provided partly by the axle's resistance to twist. But primarily by a torque tube or rod depending (on the rear suspension) running through the channel and attached rigidly to its end plates by welding. Because the torque tube or rod is an integral part of the axle assembly, it cannot be individually replaced.
One shock absorber on each side is mounted outside the coil spring and attached to the body and the beam axle. Wheel spindles are bolted to the outer ends of the axle and can be individually replaced if necessary.
Rear wheel alignment changes require the use of shims between the spindle and the axle end plates.
The Premier uses a rear torsion bar suspension with a total of 4 torsion bars, which run lengthwise through the rear crossmember.