Quote:
Originally Posted by vet57air
The install docs for the LT4 8L90 specify 3:08 to 4:11 gear and 26" to 30" tall tire. Yes I went with a 31" tire but assumed the transmission only sees the driveshaft rotation as an end result? Funny my speed to the Dakota speedo was within 5 mph first time out.
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Ya I think the rear gear ratio sort of cancels out the tall tires.
Don