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Discussion Starter #1
Im thinking about doing gears this summer, Ive got the factory gears right now, Im not sure about whether or not I should go 3.73 or 4.11, I wont be racing i just want a little more get up and go for around town
 

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I had 3.73s and now that i have my new rear end its got 4.10s and i love them even at 75mph it only tacs 2000-2200 rpm dont mess around just do 4.10s
 

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Discussion Starter #3
I had 3.73s and now that i have my new rear end its got 4.10s and i love them even at 75mph it only tacs 2000-2200 rpm dont mess around just do 4.10s
What about 3.90s they are close to 4.10s but would still probably keep me under 2000k at 75 mph right?
 

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Im sure they are close once u get to 3.73 there pretty close
 

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U ask most fbody owners with a 6spd car and 99% of them will tell u 4.10s are the perfect gears for outlr cars and they shouldve came factory with them just like they should come factory with subframe connectors
 

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Speed calculation

According to the Chassis WorX app in my phone and assuming a 3.73 rear end gear ratio, a 4L60E 0.70 OD ratio, 25.75 diameter tire (stock 225/55R16s) and 75 mph vehicle speed your RPM would be 2555 RPM, if you step up to 4.10s then RPMs climb to 2808.

RPM will vary if MT instead of AT and non-stock wheels/tires (larger RPMs will drop, smaller will go up).

Hope this helps.
 

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What about for the m6 since thats what he has
 
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