you place a little plate of steel across the U in the UCA, and weld it there. THat's gunna help keep it from squirming around. The bushings in the back are the really bad part but you dare not replace the UCA bushings with anything stiffer or it binds BAD. If you want traction, then a torque arm is the way to go. If you want to not snap an axle.. build up your back end with better stuff like 31 spline axles and a better diff.
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