Rpms with 3.73 gear

07-05-2000, 04:31 PM

How many rpms turn with 3.73 gears in a 98 gt Aod in last gear (4th) at 75 mph and 90 mph. Does the speedometer change when you change the gear ratio's

97snakedriver · 07-05-2000, 04:50 PM

You need either a new speedo gear or a compensator to correct the speedometer when you switch gears. As far as how many RPMs, take what you are at now and multiply it by (3.73)/(your current gears)

07-05-2000, 04:31 PM	#1
Eminent18 Guest Posts: n/a	Rpms with 3.73 gear How many rpms turn with 3.73 gears in a 98 gt Aod in last gear (4th) at 75 mph and 90 mph. Does the speedometer change when you change the gear ratio's

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07-05-2000, 04:50 PM	#2
97snakedriver Registered Member Join Date: May 1999 Location: Blacksburg, VA Posts: 1,526	You need either a new speedo gear or a compensator to correct the speedometer when you switch gears. As far as how many RPMs, take what you are at now and multiply it by (3.73)/(your current gears)