Someone mentioned that the 91-92 tranny is loads better then any other. I know my spare tranny in the garage is an 88, but I have no idea what the new on is? It might be a 91-92, but how can I tell?

-Reno

 

There's a date stamp above the fluid pan bolts on the passenger side of the trans. There's a little metal ear (part of the case) that sticks up with a code on it. I'll see if I can get the decoding info tonight for you. The big "Y??" stamped into the bellhousing just means "700r4".


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Okay, looks like GM also changed the ID patterns on the 700r4's. Here goes:

All 700r4's: ID stamped into case on right side, just above the trans pan.

82-84: First digit: 9=1982, 10=1983, 11=1984. (How can one digit be a 10? Do they mean 9,0,1 ?)

85-93: First digit = last digit of car year. (i.e. 5 = 85, 2 = 92)

So, whatchya got in the car?



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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!