Interesting mix,
Gear Ratios LS1-2/M6 LS6-7/M6 LS2/M6 LS1-2/A4 LS2/A6
1st Gear 2.66:1 2.97:1 2.97:1 3.06:1 4.02:1 2nd Gear 1.78:1 2.07:1 2.07:1 1.63:1 2.36:1 3rd Gear 1.30:1 1.43:1 1.43:1 1.00:1 1.53:1 4th Gear 1.00:1 1.00:1 1.00:1 .70:1 1.15:1 5th Gear 0.74:1 0.84:1 - .85:1 6th Gear 0.50:1 0.56:1 - .67:1 Reverse 2.90:1 3.28:1 3.28:1 2.29:1 3.03:1Std Z06 Z51 Auto Auto
Rear gear for the LS1-2 A4 is 2.73 optional 3.15
LS1 M6 is 3.42
LS6 M6 is 3.42
LS2 A6 is 2.56 no options yet
LS7 M6 is 3.42