Paul is a nice guy. He was very helpful to me when I rebuilt my M20. Not just his book and videos, but email questions too.
Brett I recently worked with Jeff at Midwest Muncie on my project. You might want to chat with him to get more info. I ended up with a new Autogear M23. When you look at the cost of a rebuilt original Muncie, it didn't make any sense to me to then end up with a trans that would likely break at some point. I will race mine with sticky tires maybe once or twice a year, and I drive it hard. Just finished install and have about 25 miles on the setup - waiting for spring :-/ I do recommend the clutch that Jeff sold me, a Stage 2 progressive spring pressure plate (845ft lbs clamp) Freramic/Kevlar sprung hub disc. Pedal pressure is low and if it clamps as advertised should hold up.
After reading Paul's book, watching his DVD and youtube videos, I decided I'm going to dive right in and rebuild my Muncie myself this summer. Honestly, it doesn't look that difficult to do. Rebuild kit is $185 with gaskets, synchronizer/ hub assys are $75 each (2 req), shift forks are $16.95 each (2 req), front bearing retainer is $35 and a billet midplate is $85. That's pretty much a worst case scenario as far as parts.
Hey JC... I hafta recommend Loctite Bearing Retainer for all the bearing races in the aluminum case. Once they spin, theyll never quit howling... Just sayin.... ws
I would highly recommend the snap ring pliers that Paul uses if you don't already have a strong pair. Also thick assembly grease. I used assemblee goo. It worked great after a couple very frustrating attempts with petroleum jelly.
Super simple until you go to slide the main shaft in, those damn ball bearings will not stay in place, I tried several different greases and every time they would fall said tge hell with and off it went ha
They are actually a pretty simple transmission. I rebuilt the m20 that's in my car and the m21 I have on the bench. I bought a kit off Ebay for each one. Make sure you put the input shaft oil slinger in.. my 68 350 3.42 rear end car likes the m20 much better than the m21.
