So I hit a pothole here in Pothole, Michigan, and the car suddenly just stopped doing anything worthwhile. I mean misfiring like crazy, no power, stalling, everything. Thankfully there was a shop not even half a mile away, and they took a look at it for free. The guy said that the main thrust bearing was shot on it, and literally just shoved the crankshaft back into place, fired up, and it ran fine..until it slipped forward again. So despite the incredulity of it, pretty sure that's the issue (please correct me if I'm wrong). Also, manual trans, and the previous owner sucked at driving a stick shift (first thing I replaced on the car was the clutch because it was slipping constantly), so banging that clutch into the crank didn't help I'm sure.
$800 to *hopefully* fix a fairly rusty car with more than 250k miles on the clock seems pretty steep to me. Can the bearings be swapped out in-car? If so, what would the steps be?
Should I just go with stock tolerances because it'll be good enough til the car dies for good, or oversize and risk them being too tight? Any other tips?