OC Trans went through all of the existing synchros and bushings and examined them for wear. If the old ones are worn enough, there is a possibility they might wear adjacent gears or other parts prematurely. This was our worst bushing and even it is in pretty good shape. In fact, if we didn’t have new ones on hand, OC Trans felt fine about reusing it. But we replaced them all with the new ones from the Mopar rebuild kit.