[Dr J]

You'll have to replace every plastic bushing. You covered two main areas as you examined the shift coupler bushings and work on the pedal rebuild. If your steering wheel shakes up and down, the one on the steering column will need to be replaced. If it doesn't do that yet, give it a year or two. The bushings in the engine for accelerator linkage (one in the tranny and one in the engine bell crank). Just whenever you have access, replace any plastic bearing with bronze bushings. Pelican sells these and you won't have to revisit them again.

You may also want to check/replace your motor mounts. If you drop the engine/tranny at all, check the transmission mounts as well.