I have what we believe to be the orrigonal tranny out of my 69 Z. Are there any numbers on the tranny to verify this?

pass side:
tailhousing-
3857584GM

Stampted vertically foreward of tailhousing-
19N68*78
same place, partially overlaped-
9H30A
cast further foreward-
4 6
above and foreward-
3925660
P# 3088330

*=void/defect??
2 rings on input shaft
car built sep 69
Thanks for any and all help

------------------
Joel
1969 Z28
LeMans Blue-White Stripes
#'s matching, P-O-P

You posted a partial VIN from the trans which is a '69 VIN, does this match your car's VIN?

The trans looks like an M-20 wide ratio (2.52 1st gear) Was thinking the Z's only got the close ratio M-21 and optional M-22, but I'm not positive.

The build assembly date of the trans (9H30A) sure it's not P9H30A??

P= muncie
9 = 1969 model year
H30 = August 30th, 1968
A= M-20, B= M-21, C = M-22

2 rings on the input shaft is also an M-20



[This message has been edited by 70 RS/Z-28 (edited 05-08-2000).]

Including the * in the partial vin on the trans you are also missing a digit. There should be six digits after the 19N and you only show five including the *. What is the vin of your car? Does this number correspond with it besides the * and missing digit? Comparing that number with the vin will help determine of its original. Either way you are missing a digit and this is the most important number to match. With the date of the trans being August 30th whats your cowl tag info. There is a date code that should look something like 09B

Looks right. It matches your protect-o-plate and it looks to match your VIN (9N687273), assuming the last digit is a 3 instead of an 8.

It's a M20. Z's could get M20, M21, or M22. M20 is the better trans with your 3.73 rearend.

------------------
Kurt S.
www.camaros.org (http://www.camaros.org)

well, the reason the stamped nimbers may have been missing digits was because they were overlapped. my vin # is 124379N687273
thanx

------------------
Joel
1969 Z28
LeMans Blue-White Stripes
#'s matching, P-O-P