I'm doing mine this weekend. I've got a pretty bad clunk on front left and am pretty sure it's a ball joint (FCABs have already been done).
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"ZHP is a garbage option anyway- just some cosmetic upgrades with a different cam and diff to claw back some of the performance lost fitting those hideous and heavy wheels. Any 330 with a 3.46 diff will smoke a ZHP every time. The whole Mafia thing reeks of childish behavior." - an e46f member