GM F40 transmission
Design

Gear Ratios
MT2 (2006)
MU9 (2007+)
1st
3.77
3.92
2nd
2.04
2.04
3rd
1.32
1.37
4th
.95
1.05
5th
.76
.85
6th
.62
.71
Final Drive
3.545
3.762

Question: How did the 3rd gear ratio change from the MT2 to the MU9?
Answer: The ratio for 3rd gear is 1.32 for the MT2, and it was increased to 1.37 for the MU9.