You can reinforce the front and rear brackets for the lower control arm bolts by perimeter welding the brackets to the crossmember.
I always clean out the tubes and used some anti-seize on the shoulders of the bolts.
The Volvo tool for pressing the lower bushings out and in is basically a large C clamp, but it is a thick and strong C clamp and the regular style of C clamps are too weak so I would go to a machine shop to have the bushings pressed.
The most important step when changing the lower control arm bushings is tightening the nuts properly. You only want to fully tighten the nuts with the weight the car on the wheels. If you tighten the nuts with the suspension hanging you will be damaging the bushings.
IPD sells AquaLube to lubricate poly bushings and that green stuff is the best AFAIK for poly bushings. I like the stuff so much, I buy it in 16oz tubes.
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Eric Hi Performance Automotive Service (formerly OVO or Old Volvos Only) Torrance, CA 90502
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