Gear questions
- Thread starter rand
- Start date
3.73 is the favored ratio for the 07-9 cars. I'd probably go 4.10's on the new trans due to the retarded 5th/6th ratios.
You can enter your parameters here to determine what your speed in gear will be
http://www.f-body.org/gears/
2007-9 ratios:
1st 2.97
2nd 1.78
3rd 1.3
4th 1.0
5th 0.80
6th 0.63
Final Drive 3.31
2010+ ratios:
1st 2.97
2nd 1.78
3rd 1.3
4th 1.0
5th 0.74
6th 0.50
Final Drive 3.55
You can enter your parameters here to determine what your speed in gear will be
http://www.f-body.org/gears/
2007-9 ratios:
1st 2.97
2nd 1.78
3rd 1.3
4th 1.0
5th 0.80
6th 0.63
Final Drive 3.31
2010+ ratios:
1st 2.97
2nd 1.78
3rd 1.3
4th 1.0
5th 0.74
6th 0.50
Final Drive 3.55
Sounds like 3.73's with a 10 up trans is the way to go.
Don't fear the gear! :rockon:
4.10s in the 10+ unless you got the performance pack and it came with 3.73s to begin with.
I'm adding 4.10s tomorrow, then just running a 45 series tire at the track.
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2010 stock 3.55 at 17 to 2000 rpms= 70mph
on a 1400 mile trip i averaged 26 mpg
saw as high as 28 mpgs
oops sorry just realized u were asking about 3.73/4.10s
on a 1400 mile trip i averaged 26 mpg
saw as high as 28 mpgs
oops sorry just realized u were asking about 3.73/4.10s
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i had the 3.73 gears installed at my ford dealer and they are great. 2200 or so in 6th at 70mph. at the same time they installed the ford racing tune and cold air kit. its like a different car. dont be afraid of these gears, you will like them
Yep; the 3.73s seem perfect in my '09, as it came with 'em (KR). Mileage is only around 21 highway though... Probably has to do with the KR tune.
LOL ive been using the F-body.org caculator since the 90's. That was a cool site back in the day (90's) when I had my 67 Camaro
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