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What to look out for? My 63 came with the original trans, not in the car (Unfinished restomod). I took it to a shop to have them check it out, but after 3 months they have yet to look at it.
I'm going to pick it up and check it myself. Problem areas to look for? I do my own work anyway; it's probably better this way. What do you suggest?
Marc
I have a local customer with an early 63 SWC that I did a lot of work on. One of the things that came to me was the original shifter on the T10. They were weak transmissions, the Muncie although similar is a better trans. They had 16 spline main shafts and the bearing retainers were an odd ball size. The one I rebuilt didn't need gears, the car was never abused and shifted like a hot knife through butter. I was told at the time the gears are long gone and the bearing retainers sold may need to be machined. I don't recall if I machined it or not, I would have to check the file.
Larry at D&L would be the guy who may still have the parts. Since covid, the quality of parts has changed and not for the better. Some of the trans guys I know stopped working on Muncies now, let alone the old T10's. It's all about Tremec OD's now.
What to look out for? My 63 came with the original trans, not in the car (Unfinished restomod). I took it to a shop to have them check it out, but after 3 months they have yet to look at it.
I'm going to pick it up and check it myself. Problem areas to look for? I do my own work anyway; it's probably better this way. What do you suggest?
Marc
I’m no expert, but have built a few back in the day. Second gear seems to go first. Synchro wear let’s it jump out of gear on coast. Later T-10’s had a bushed second gear as I recall. Maybe earlier had shaft wear issues here.
The rebuild on a T-10 is straightforward and simple. 2/3 gears are the weak area. Replace them. Redo the sliders (internal/external) and brass synchros. Check the input/output bearing since you have it out of the car. Check with Paul at 5speeds for parts. I know he only sources from Italy on Muncies. Chinese stuff is junk. His guidance is excellent.
I had to do the same for mine .
If you are not worried about originality you can replace it with a newer muncy or a super T-10 but will need to change the bell housing and clutch fork and linkage .
It gets expensive though .
Checking a T10 trans?
I had to do the same for mine . 
