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Rex_A_Lott · 08-04-2015, 01:20 PM

A lot is going to depend on what you have for a motor. For a stock rearend you have a 3.54, a 3.27 and a 4.11 available, other than your 3.78.
In theory you can divide the ratios and find the reduction in RPM you will get for a given speed, but you eventually get to the point where the motor cant pull the taller gear. Good Luck

08-04-2015, 01:20 PM	#2
Rex_A_Lott Senior Member Join Date: Jun 2011 Location: Upstate South Carolina Posts: 794	Re: Rear End Gear Ratio for T5 Transmission? A lot is going to depend on what you have for a motor. For a stock rearend you have a 3.54, a 3.27 and a 4.11 available, other than your 3.78. In theory you can divide the ratios and find the reduction in RPM you will get for a given speed, but you eventually get to the point where the motor cant pull the taller gear. Good Luck