Muncie M21 Gear Source

[Greg T.]

I need a bunch of parts for my M-21 old style transmission. I will need some gears also. I'm a little concerned about the gear quality. Is there a reccomended vendor for gears? Is the quality of the new gears any good or should I try to source a good vintage set?

Thanks Greg

[Thomas H.]

Re: Muncie M21 Gear Source

Greg,

I have used D&L Transmission in NY for Muncie parts in the past (http://www.dandltransmission.com/). They sell high quality parts and are very helpful if you have any technicial issues.

Tom

[Joe L.]

Re: Muncie M21 Gear Source

I need a bunch of parts for my M-21 old style transmission. I will need some gears also. I'm a little concerned about the gear quality. Is there a reccomended vendor for gears? Is the quality of the new gears any good or should I try to source a good vintage set?

Thanks Greg

Greg-----


I believe the only current manufacturer for Muncie gears and other internal parts is Masiero S.A., an Italian gear manufacturer. Masiero is one of the, if not the, largest manufacturers of gears in the world. I have never heard of any sort of problems with their parts. Personally, if I needed internal Muncie parts, I would use them without the slightest hesitation. I would say they are MUCH to be preferred over used parts.

I expect the Masiero product is what D&L supplies.

[Ridge K.]

Re: Muncie M21 Gear Source

Greg, I had my '67 Muncie rebuilt earlier this year, and talked to a couple of veteran rebuilders. They both confirmed Joe's opinion on the parts.

I started a thread back then showing the exterior end result, if you're interested:

https://www.forums.ncrs.org/showthread.php?t=83867&uid=6420

[Tom P.]

Re: Muncie M21 Gear Source

Greg,

I have used D&L Transmission in NY for Muncie parts in the past (http://www.dandltransmission.com/). They sell high quality parts and are very helpful if you have any technicial issues.

Tom

I've been doing business with Larry Fischer for 30+yrs. He is the ONLY source for 4sp parts that I use. None finer to do business with.

[Ronald L.]

Re: Muncie M21 Gear Source

Greg,

You might consider a know clean original gear set versus new and have that installed in your original case preserving all the original fasteners, apperance etc..

Liberty Gear, Allen Park Mi is on the highly rec. list around here.

[Domenic T.]

Re: Muncie M21 Gear Source

I also go with the quality of the new gears and have had O problems

Also the prices are not that far from what they were in the 60's.

It's nice when you are rebuilding to know that you can make them like new again.

The complete gear sets also look inviting.

DOM

[Gary R.]

Re: Muncie M21 Gear Source

Joe,
I'm not sure Maserio is still making them? I did a couple of Muncies over the summer and Auto Gear (NY) was the source for the parts to all I spoke with and they said the Italian gear mfg had closed.

The last Muncie I built was a 1969 M-22 and the guy wanted the new super close ratio M-22 gears Auto Gear sells. The 2nd & 3rd gears were Italian and 1st,4th,& rev were Twainese. The rev idler gear caused a bind on the shaft and I had to reuse the original GM/Muncie idler and it was fine. I believe it was 3rd gear that has a cut over run on it as well and I didn't like the quality but the guy who bought the gears said to use it anyway.

[Ridge K.]

Re: Muncie M21 Gear Source

Joe,
I'm not sure Maserio is still making them? I did a couple of Muncies over the summer and Auto Gear (NY) was the source for the parts to all I spoke with and they said the Italian gear mfg had closed.

The last Muncie I built was a 1969 M-22 and the guy wanted the new super close ratio M-22 gears Auto Gear sells. The 2nd & 3rd gears were Italian and 1st,4th,& rev were Twainese. The rev idler gear caused a bind on the shaft and I had to reuse the original GM/Muncie idler and it was fine. I believe it was 3rd gear that has a cut over run on it as well and I didn't like the quality but the guy who bought the gears said to use it anyway.

Gary, after reading your post I went to the Auto Gear website.

On their homepage, they posted this message:

* Important Update *
We now have our Italian-made M22 gearsets (with modular cluster gears) back in stock!!!

[Gary R.]

Re: Muncie M21 Gear Source

Thanks Ridge, not sure when things changed but hopefully the quality is good and offered for a long time.

[Joe L.]

Re: Muncie M21 Gear Source

Thanks Ridge, not sure when things changed but hopefully the quality is good and offered for a long time.

Gary------


Usually, when gear manufacturers make parts like these for a long-obsolete application they will make a production run over a relatively short period of time. The inventory thus produced will be sold to stocking distributors (like Autogear) and will last for some period of time. Whether, or not, they manufacture another run depends on a lot of things, like whether it took too long to deplete the previous production run and whether they see a product demand by orders from stocking distributors.

I'm sure that these Muncie gears represent an extremely tiny "niche" market and a manufacturer like Masiero is not going to be very interested in manufacturing product unless it can be sold rather quickly. That's the problem with getting internal parts for something like a Muncie transmission reproduced-------it takes a very large manufacturer to have the capability to produce these type of parts and very large manufacturers don't like to get involved in this kind of "micro market".

[Ronald L.]

Re: Muncie M21 Gear Source

The shop I mentioned has a source for the gears they say are better than OE and they are a shop that specializes on building gear boxes. I went there and checked them out a month or so back when this question came up from a local MI member.

[Eric D.]

Re: Muncie M21 Gear Source

You could E-mail Crash Enterprises, the last time I talked to them, they had enough NOS Muncie gears for 12-15 transmissions, and over 100 cores in stock... Eric
crash_enterprises@yahoo.com