Borg Warner T-10 Production Codes - Team Camaro Tech
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post #1 of 2 (permalink) Old Oct 22nd, 00, 05:25 PM Thread Starter
Join Date: Oct 2000
Posts: 1

Any experts on Borg Warner T-10's? How can I tell if it is a Super T-10 or just a T-10? Trying to figure out what I have and what it should go in. Here are the numbers:

Side Cover: E 30 79

Tail: 13-04 066-90 5

Main Case: 9 HT 103
13-04-065-90 4

Tag on Side Cover: 8-W

Any help will be appreciated....Dante
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post #2 of 2 (permalink) Old Oct 22nd, 00, 06:17 PM
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Join Date: Oct 1999
Location: Payson,Az. U.S.A.
Posts: 170

It is a Super T-10. The E 30 79 = May 30 1979. I don't know alot of the other codes, but would guess that it came in a '79 Z/28 or Pontiac T/A. The AS9-T10Y, I'm not sure on AS9, but T10Y is the gear ratio. Y=
a 2.88:1 1st gear, 1.74 2nd, 1.33 3rd., 1.00 4th., 2.78 rev. I hope this helps some. I have a Brand New 0 mile 1978 B/W ST-10 special ordered Nodular Iron cased AS9-T10Y sitting in my shop waiting to go into my 68 Camaro SS L78 car, along with a '69 Vette 427 engine.
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