Borg Warner T-10
Race Director
Joined: Jul 2004
Posts: 12,703
Likes: 329
From: Scottsdale Arizona
I did a couple of seaches. Couldn't find anything useful on the number of grooves but did find some useful info on this post:
http://forums.corvetteforum.com/c1-a...ranny-i-d.html
http://forums.corvetteforum.com/c1-a...ranny-i-d.html
Burning Brakes
Joined: Jan 2006
Posts: 1,223
Likes: 174
From: Fort Wayne IN
According to the books I have, the 76 standard ratio first gear is 2.64:1 and the close ratio is 2.43:1. So, if you have it disconnected from the engine or out, put it in first, mark the input shaft, and spin the tailshaft. If you get less than 2.5 revolutions, it's a close ratio, if you get more it's a standard ratio.
Melting Slicks
Joined: Oct 2002
Posts: 2,317
Likes: 111
From: St Louis MO
Two grooves is the 2.43 gear ratio set; 3 grooves is the 2.64 set. For a good source of information, go to the following:
http://pontiacpower.org/BW.htm
http://pontiacpower.org/BW.htm
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
larrywalk, thank you sooooo much for posting that link. I had it saved on an old computer that crashed and have done a ton of searches trying to find it.
I have one with 4 grooves but I can't see any dimples in the gears that would indicate it is a nickel geared piece. I'm hoping it is, looks like I may be selling it in favor of a TKO-600.
I have one with 4 grooves but I can't see any dimples in the gears that would indicate it is a nickel geared piece. I'm hoping it is, looks like I may be selling it in favor of a TKO-600.
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Safety Car
Joined: May 2008
Posts: 3,753
Likes: 721
From: Lafayette Louisiana
D&L transmission link
http://www.dandltransmission.com/borgratio.html
Here is a good one that I found.
2 groove is the close ratio. Agree the best way is to put it in gear and count rotations.
Here is a good one that I found.
2 groove is the close ratio. Agree the best way is to put it in gear and count rotations.
