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Old 09-12-2017, 05:46 PM   #3
Johnny's Journey
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Join Date: Jun 2017
Location: Downey, Ca.
Posts: 344
Quote:
Originally Posted by Timcharlie View Post
.....instead of putting the transmission in D should I put it in M4 or M5 or??????? Would doing so help?
Yes. The 6L90 6 speed last 2 speeds, 5th and 6th are OD gears. M4 or 4th is the last gear closest to 1 to 1 ratio of olden days. Here's a break down.

Gear Ratios
First: 4.030
Second: 2.360
Third: 1.530
Fourth: 1.150
Fifth: 0.850
Sixth: 0.670
Reverse: 3.060
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