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Confusion on gears....

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Old 05-20-2009, 11:03 PM
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Default Confusion on gears....

I was told I have 3.73's by the previous owner, but I used the conversion chart that is here in LS1tech to verify and the numbers are off too much....I compared with 4.10 AND 3.23's and still no match...it is a T-56 LT1 97 SS...here are my numbers

2000 RPM's in 2nd Gear------25 MPH
2000 RPM's in 5th Gear------61 MPH
3000 RPM's in 3rd Gear------51 MPH

Any ideas???
Old 05-20-2009, 11:04 PM
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Oh, and on the track I ran a 13.6 at 103.73
Old 05-20-2009, 11:21 PM
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You have stock 3:42s for sure, I just calculated it.
Old 05-20-2009, 11:23 PM
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where did you do that? the link I had didnt show 3.42's
Old 05-21-2009, 12:00 PM
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http://www.f-body.org/gears/
Old 05-21-2009, 01:10 PM
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I calculated 3.42 also
0.74 transmission ratio (5th gear)
2000 RPM
61 MPH
275/40/17 tires
Old 05-21-2009, 01:34 PM
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Did you ever think of lifting the rear spinning the wheels one rotation and see how many times the driveshaft turns ? Gauranteed way to determine axle ratio.
Old 05-21-2009, 01:42 PM
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They are 3:42's.. If they are stock,that's what you get with a 6 spd..
Old 05-21-2009, 03:15 PM
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You definitely got told a little white lie. You've got stock gears.
Old 05-21-2009, 03:33 PM
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lol, oh well...guess next mod is 3.73's or 4.10's haha
Old 05-21-2009, 03:51 PM
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go 4.10s in a 6 speed.
Old 05-21-2009, 06:47 PM
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or maybe he never got the car tuned for the 3.73's?
Old 05-21-2009, 07:08 PM
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that might be the case....if that matters....does it? need to know for sure ASAP...computer leaved for Madtuner tomorrow morning
Old 05-21-2009, 09:52 PM
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i would go with the fact that you have 3.42s. If you want to know for sure then its time do change your differential fluid. I don't think anyone on here is the guy who sold you the car so you won't get an the absolute answer you are looking for.
Old 05-23-2009, 09:14 PM
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most people assume the SS came with 3.73




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