What gears do I have?
07-15-2008, 03:34 PM
#1
Staging Lane
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Location: Pennsylvania
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What gears do I have? At about 2000rpm my car is at 89 mph in sixth gear. The gear ratio calculator on fbody.org says it should be 94 mph with 3.42s. Is this a difference caused by the inaccuracy of my speedometer or could I have 3.73 gears? If so, what is an easy way to tell?
07-15-2008, 03:45 PM
#3
You've got stock 3.42's. Dunno what you were using on the fbody.org calculator, but it wasn't right. Your tires are 25.66" tall (round to 26" if ya want) and 6th gear is .5:1......that equals 89mph at 2000rpm with 3.42's.
Your speed at 2000rpm in 6th gear with 3.73's would be 82mph.
Your speed at 2000rpm in 6th gear with 3.73's would be 82mph.