You should not need to replace the whole rear control arm. I DIDN'T. My local mechanic found the bushing part number thankfully. The part number for the lower rear camber bolt bushing is a Mevotech MS254102. If your camber bolts are seized in the existing bushings like mine were, be sure to buy new camber bolts, washers, and locknuts from the DEALERSHIP. Because the ones from Modern Performance (without modification to the lateral control arm slotted hole) will not allow enough adjustment to get the rear negative camber back in spec (-1.00 to + or -.45). Total cost for me with parts and labor (including rear alignment) was about $550. Not exactly cheap but it sure beats the alternative which is buying 2 whole rear control arms ($700 each) plus all that extra labor to remove and install them. My mechanic believes the reason FCA says that the control arm is not a serviceable part is because the control arm is aluminum and the bushing has a steel outer ring and therefore we have a nice little issue of dissimilar metals which can cause serious rust and oxidation thus making it quite possible to damage the control arm whilst removing the old bushing. If you or your mechanic are careful it can be done. By the way my 2013 Dodge Dart Rallye had just over 111,000 miles on it when I had this work done and I live in Michigan where we salt the roads in winter. Fyi my rear camber before this was -2.0 degrees and -2.5 degrees.
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