Need help identifing this muncie!

[just love cars]

NOT TO BE A KNOW IT ALL BUT HERE IS HOW THE TRANS. BREAKS DOWN. P8M29-p- PONTIAC(GTO)8- 1968 M-AUG. 29-DAY THE LAST LETTER IS A,B,C, A=M20 B=M21 C=M22 YOU DID NOT POST THE LAST LETTER HOPE THIS HELPS!!! THE CASE # AND TAIL CASTING # DID COME TOGATHER BUT THE SIDE IS INCORRECT IT CAME OUT OF A 1969 GTO.

[SS427]

Hello Tony and welcome to the site but quit yelling (cap locks).

Where abouts in MN are you? Nice to see another Minnesotan.
Rick

[just love cars]

Hi Rick , Sorry about the capital letters . Northfield , 20 minutes south of Burnsville. GO VIKES !! Yes, I'm Yelling that. Tony

[crash]

The A B C ratio indicator didn't start to be used until the 1969 model year (Oct 21 1968)... Crash

[just love cars]

Sorry abut the misinformation on the A B C codes, my over sight. Indeed they were not used until 1969. Use the input shaft for ID 2 groves =M20 1 grove = M21 no grove = M22. Just try to help out . Tony

[crash]

The 707 sidecover was used 1963 1/2 thru 1965 model years... 1969 model year used 306 sidecover...Crash

[bertfam]

Also, "P" doesn't indicate Pontiac. It indicates a Muncie 4 speed transmission for passenger cars (except the Corvair).

Ed

[just love cars]

The P works up to 1967 early 68. Then they changed that to HI (CHEVY) code if it was a special order such as a 396SS they put the P in the third digit "HIP". The case and tail numbers where put together by Pontiac. I have one in my garage. I know it came out of a GTO. Tony

[bertfam]

Tony,

I'm not sure where you got your information from, but I don't think it's correct. I've never heard of this and there's nothing in any of my reference material mentioning the "HI" or the "HIP" codes. "Chevy By the Numbers" has no info on these as well.

The "P" was used on the Muncie 4 speed (aluminum case) starting in the late 1963 model year (for Corvettes), up through the 1974 model year.

Although there are a lot of good WEB sites with Muncie info in them, HERE'S ONE I found doing a quick Google search. Others might chime in with more.

You should also pick up a copy of Alan Colvin's books, "Chevy By the Numbers" series. They have a TON of great info in them, and Alan's even a member of the Camaro Research Group.

Ed

[just love cars]

I got that from a chevelle ss restoratioin guide. Just shows you can't believe every thing you read. Tony