gear's
What gears ar in a 99 ta m6? thinking about 4.10. and what would i trap in the 1/4 now I run 13.131 at 107.5 
12-08-2007, 02:55 PM
#2
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I'm pretty sure all m6 f bodies have 3.42 gears (RPO = GU6?). And I honestly have no idea how much it'll affect your traps. Hopefully it'll put you in the 12 second club though.
12-08-2007, 03:35 PM
#3
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Yep stock was 3.42. Make sure no one changed them, my door code says GU2 but changed to 3.42. Check out a gear/MPH calculator like www.f-body.org/gears/
12-08-2007, 04:29 PM
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https://ls1tech.com/forums/gears-axles/376207-want-know-effect-changing-gear-ratios-look-here-first.html
Maybe this will help some
Maybe this will help some
12-11-2007, 11:23 AM
#6
Basically, having 4.10's will probably net you a faster ET, but depending on how much power you are pushing, you may have to shift into 5th by the end of the 1/4 mile, and that will definatly hurt both your time and MPH. Something to think about.
Personally, I judge what gears would be good based upon the RWHP level of the car. 4.10's are great if you are staying N/A with some bolt ons and no motor work. However with even upgrading the heads and cam, you might want to think about going with a 3.73 or smaller for traction reasons.