Aisin has been building transmissions for many many many years. I can't find any other they've built without provision for a pilot bushing or bearing. Was this an experiment by Aisin and Jeep let them play with it, or did they build the transmission to Jeeps specifications? If the latter, then yes, some engineers should be sternly talked toThanks for shedding some real world informed light on the matter. I can't believe they didn't design it with a pilot bearing. If I worked for FCA I'd be firing a couple of engineers right about now...
"Normal" input shaft, photo is AX15 5-speed that was in YJs, TJs and I believe some JKs