although for me, as you seem to have a problem that will take you to an alignment rack, i rebuild the Whole front and rear ends. for one if you do it right, use good parts, and use a good alignment shop/rack, the new suspension you (possibly) put in can last you ,,oh, 6years or so, perhaps 2 sets of tires. can be a little burdensome on the wallet in the immediate sense, but if you do it right you should save a good bit, as most suspension work means your next stop will be another alignment rack. i, seeing your old model, and just about any car on this forum, esp if your a new owner and are going to work it, can by now use a full suspension 'rebuild'. so i go all 4 corners, (the rears arent much.), including probably new a-arms, and the a-arm bushings. just good practice, and you should get good results. i happen to have a real good shop that aligns all 4 corners, not easy to do to get the rears Right. and a little pricey. will pm.
in this case be4 you hit the align rack 4 new rubbers are best, esp considering the $ and work you-d put in--.