Guys,
I have been thinking about rebuilding the M-20 for my car. The transmission is used and I really have no idea as to the condition. I have been looking on Ebay at the different types of rebuild kit and I'm trying to figure out which would be the best? Has anyone ever seen a Muncie transmission stand for holding it during rebuild? Below are the numbers off the transmission.

Thanks

Main Case
3925661

Tail Shaft
3857584

Side Case
3952648

Bearing Cover
3976020

POB13A

(2) Rings

10R213738

There is no need for a stand. All you need is a clean bench. Did you just buy it or have you been running it in your car? Is it noisy, leaking, grinding, or jumping out of gear?

Scott,
E-mail Wally Knight wally@muncie4speed.com He is the trans forum moderator over on the Chevelle site. He has a very complete kit and will help you out if you need. Great guy to deal with.

Scott,
I did mine last winter, and it turned out great. Someone here posted a scan of an ancient magazine atricle for me, that and a post was my only guide. My problem with the trans was popping out of first, and to get to that synchro, a gear had to be pressed off. I learned more in an hour with the owner of the shop I carried the mainshaft into than any other source. Place was a 2 hour drive, but recommended, and the only place I talked to that was willing to touch less than a complete trans.

Found out a few things, including that the syncro assy's come in 2 totally different types, and my trans had one of each! My rebuild kit of course, had 2 the same, and no sliders, which was what I needed to fix it.

By all means, if you can't locate a resourse close by, talk to Wally or someone like him. I'll be forever grateful to that working pro who took an hour out of his day to take the mainshaft I carried into his shop, make it right, and come up with all the parts I needed to finish the job, for next to nothing.

I rebuilt mine recently and converted my M21 to a M22.

I found it to be pretty straight forward. Most M20s have a 7/8" countershaft rod but you need to check it and make sure before ordering a rebuild kit. The M21 and M22 have a 1" countershaft rod.

Do a google search for "Muncie rebuild". Most trans places have a blow up of the individual trans componants to help you order parts by the correct termonology(sp).

Here is an article for rebuilding and will give you an idea what it takes to rebuild your tranny.

http://ca.geocities.com/mlvd@rogers.com/muncie_rebuild.htm

Luckily, I have a press at work. Which is needed to take first gear off the main shaft. The only other special tools needed is snap ring pliers.

I replaced my sliders and put in the torq lock sliders. My shifting forks were worn and needed to be replaced.

Caution: Your reverse arm is held in by a tapered pin. If you drive it the wrong way, you could crack your tail housing.

Good luck, Phil

Sorry for so long getting back...the transmission is one that I bought and I just figured it would make good sense to go through it before installing it. I will send Wally an email and see what happens. I have access to a press as well as other tools, so I guess I need to get the parts and go for it.

Thanks everyone. :beers:

I would also recommend the 5speeds.com video.
http://www.5speeds.com/video.html

A trick I used for years was to make a dummy shaft for the cluster from a piece of tubing. Make it only slightly smaller in diameter than the pin and just long enough to go through the cluster and the thrust washers. The hole in the center of the tubing makes it easy to position the cluster for installing the actual cluster pin. A one hole concrete block and a couple of pieces of 2x4 makes a dandy reassembly stand.