Reply to "lower A arm faillure."

I've seen three broken stockers. One was caused by continually floor-jacking the whole rear end of the car up by the a-arm, which is only mild steel tubing. It was successfully rewelded.

The second was from a frozen lower cross-shaft which the owner ignored until driving the car with non-movement of the lower shaft cracked the a-arm welds in two places. This one got a replacement a-arm plus a complete rebuild of the whole rear upright.

The third was from using polyurethane bushings on the outer end of an oversized rear swaybar. The geometry of the rear suspension is such that relatively stiff poly out on the ends overstressed and cracked the welds holding the steel channel for the outer bushing. This was also successfully rewelded. For the outer ends of both swaybars, either use rubber or sphere-balls for the necessary compliance.