My Mitsubishi tranny(187,000 miles) ocassionaly pops out of 1st. and 5th. I have it out for a clutch/throw out brg./slave cyl. job and I'm wondering if there is anything I can do about the popping out of gear prob. I can feel 1 to 2 m/m axial play at the end of the input shaft and I expect the problem is a combo. of wear on the undercut of the gears and play at the input and intermediate shafts. I could go with a front bearing kit from Parts America that lists for around $80 or a master rebuild kit from Trans Doctor for around $190
My question is, has anyone experienced the popping out of gear prob. and does anyone think that installing one or the other kit might help?
I don't have a problem with buying and installing these parts, although getting them down here to Costa Rica is another matter.
Thanks,
Gary

 

I have not had that problem but have read several other sites where it is a problem. Most are doing just like yours and the advise to fix it is a rebuild kit. I do not remember right off hand what the exact problem was but i will search for it and relay it to you.

 

Sounds like the input is shot and you have sincro problems,from what you described things are just worn out. This is a common issue on a tranny in need of a rebuild,Popping out of gear is a pretty normal in a FM 146 in need of work.