My ’11 five liter GT with 51K miles has experienced abnormal front tire wear, first on the right tire inside edge, later followed by the left tire side. A front end alignment performed a few years ago seems to have reduced the effects on the right side but now the left tire is wearing rapidly. A recent trip to an alignment shop revealed a single crack radiating from I.D. to O.D. of the large rear rubber bushing on both LCAs. The technician who discovered the issue said that realignment would not be effective even short term with that defect in place. Rock Auto identified five LCA replacement part options by four manufacturers. Two Motorcraft part numbers were offered for the right side, MCF 2309 and MCF 2364, the former about half the cost of the latter which is also labeled “Coupe”. Moog, Delco and Mevotech were also offered. A separate rear bushing made by Dorman is also available at about a third of the LCA assembly cost. Is the bushing failure a common problem in late model Mustangs? Is the non-OEM Delco product a good replacement LCA part or is the much higher priced Motorcraft part (probably identical to the failed item) preferable? Is replacement of the large LCA rear bushing possible without removing the whole assembly from the car? Are there other considerations to the repair?