When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
When I bought my 1967 Corvette it had a Muncie transmission and 411/410 gears. Replaced with a TKO 500 and 3.55 gears.
This Muncie has been in my basement for several years, and have decided to try and sell. Please excuse the oil mess, plan to clean asap.
Info:
P8T26 12/26/67
Side cover: 3884685
Tail shaft housing: 3857584
Input bearing retainer: 3915020
Patent: 3088336
GM casting 3925660
Metal tag 3920732
Removed cover and inspected gears and they are M22's
Next to the P8T26 is a vin# 18S40958
Looked at Vin decoding websites, and cant figure out the second digit.
Don't know if it is appropriate to ask about a selling price...if possible would like some opinions
Thanks in advance for your replies.
The second digit? The 8 is for the model year in both stampings if that’s what you’re asking. So would be model year 1968.Like stated already you gotta pull the cover to see the angle on the gears to tell for sure, there are a lot of input shafts out there without the rings for M20/21.
I took the cover off and compared to pictures on this forum. They are not as slanted as the M20/21. Will post picture after cleanup and cover comes off again
Thanks 4 reply
That's like hearing the bells and sirens when you hit the Jackpot........
Doubt if it's untouched...Opps looking the wrong way... Sorry. Second and third gear look pretty new from the angle of the picture... Input looks like a worn original
Last edited by SledgeHammer 2.0; Sep 30, 2021 at 05:57 PM.
Reason: I cint spele
I would say that 3rd gear looks the best with the exception of 1st. The engagement teeth are pretty nice with the "tent" pretty much intact. 4th looks pretty chewed up.
Helix angle should be 20* for M22. They don’t seem to be bringing as much as they used to since the popularity of the TKO’s and other newer better trannys. (In my circles anyway) I think right now Autogear is out of the gears and parts they normally sell to replace the bad ones with. And
many people that were paying the big money for them can buy a new auto gear super case M22.
Helix angle should be 20* for M22. They don’t seem to be bringing as much as they used to since the popularity of the TKO’s and other newer better trannys. (In my circles anyway) I think right now Autogear is out of the gears and parts they normally sell to replace the bad ones with. And
many people that were paying the big money for them can buy a new auto gear super case M22.
A dozen years ago I had several of those that I sold for big money, All of the guys buying them put them in "clone cars" (that should say clown). Now, those gearsets are available and I think the value has gone way down. Still a nice piece and worth money, especially if you can find the car it belongs to.
I think you can put a new one together for less than $2,500. The significance of having one as a NOM transmission is nothing more than cocktail party talk.
A complete Muncie gear set (M20, M21, M22, M22W, etc, etc) will run $800-900. If a person already has a complete Muncie, then ALLLLLLLLLLLL the other guts will fit. Although, it may be worth it to buy a rebuild kit, and MAYBE, MAYBE, MAYBE 2 new syncro sliders.
The Italian made gears are preferable over the Asian gears, ALTHOUGH, the Asian gears are a little cheaper.
MOST people want a quite transmission, BUT, for those folks who like to have that M22 whine (me included), which only came in a close ratio version, there is now an M22W gear set which is a wide ratio version. I have already converted 3 Muncies to the M22W gears and I'm very happy with them. I even have one M22W with a roller bearing 1st gear, but have yet to install it in a car.
Muncie question
