how do i identify what tranny i have?it says borg warner.the number i see is:13-04-066-905.it has a fine spline and 6 rings on the input shaft

any help would be appreciated

The only thing I found about these trannys is the same info as a Muncie.I used Google Search,typed in Borg-Warner T-10 4 Speed,and a page came up with #s and was for the Muncie trans.Try it and see what you come up with,if you can find something different,let me know,I also have a T-10 and I`m trying to find out what it is.

WHERE ARE ALL THE 4 SPEED GURU'S?

Sorry Terry, stuck at work, I remember seeing something in one of my books.. I'll try to find the info you need, but have to take the kids to the amusement park tomorrow..can't promise when but I'll do my best to find the info..

Dave

THANKS DAVE....

Terry, does this help? found it online


Q: Identifying Saginaw 4-speed or a Muncie 4-speed on a '67
How can one tell *FOR SURE* if you have a Saginaw 4-speed or a Muncie 4-speed. How about if its a M21 close vs m22 wide ratio? I read somewhere that all 67 4speed birds were saginaw-equipped (something about deloean and co having very little time to get the 67 model out the door?) Did some 68's also have saginaws?

A: They both have 7 bolts on the cover. The reverse lever on the Muncie is mounted IN the extension housing, where the Saginaw reverse lever is mounted in the side cover.

The M-22 close ratio transmission is easily identified INTERNALLY from the M-20 and the M-21 versions by the angle of the gear teeth. The M-22 was only produced in a close ratio version, so it will not appear on models with high rear axle ratios (3.55 or lower numerically) unless someone has changed it out. The "rock crusher" came in 70-73 years but was also in 67 vettes. The M-22 differs from the 21 and 20 in the input shaft, cluster gear, first, second, third and reverse idler gear.

Can't speak to the Saginaw Firebird 67 vs. 68 theory. I would imagine there was a mixture depending on engine type or more importantly axle ratio. Check your two digit axle code.

A: V-8s used Muncies,OHC-6 1 and 4 bbl used saginaws but a few 4bbl OHC had muncies ( assembly line goof ups), Easy way to tell apart is muncies are alum. and saginaws cast iron. Also muncies have the reverse lever in the tailshaft. No M-22 were installed in early Firebirds. First gear is 2.20 in a M-21 or 22

saginaws are cast iron case transes and are wide ratio transes

muncies are alum cased an come in wide an close ratio versions

there is a borg warrner super t-10 were mostly alum cased some had iron main case with alum tail shaft

there is also a t-10 borg warner not a super t-10 that is a iron saced older trans from the late 50 early 60

this is all alum and has a fine spline.anyone know the approx value?with the shifter and linkage?