Attn: Guys with T5's who want 3.73 gears
Thread Starter
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Attn: Guys with T5's who want 3.73 gears
According to this link that Tom Keliher posted: http://www.hanlonmotorsports.com/t5speedo.asp
The 7/21 tooth combo is only for 3.73's, with the stock tire size of 245/50-16's. For me, with 3.70's, and 255/50-16's, I'll want the 7/20 combo, which is almost perfect. But, GM doesnt make a 20 or a 21 tooth driven gear anymore!!
So now what do we do? Are there speedo shops, or other places to go? SLP lists speedo gears for 3.70's, I am contacting them.
------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
The 7/21 tooth combo is only for 3.73's, with the stock tire size of 245/50-16's. For me, with 3.70's, and 255/50-16's, I'll want the 7/20 combo, which is almost perfect. But, GM doesnt make a 20 or a 21 tooth driven gear anymore!!
So now what do we do? Are there speedo shops, or other places to go? SLP lists speedo gears for 3.70's, I am contacting them.------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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