Code:
Tremec TR3160 Tremec TR6060 Hydra-Matic 8L45 Hydra-Matic 8L90
6-speed manual 6-speed manual 8-speed automatic 8-speed automatic
(2.0T and 3.6L) (6.2L) (2.0L and 3.6L) (6.2L)
First: 4.40 2.66 4.62 4.56
Second: 2.59 1.78 3.04 2.97
Third: 1.80 1.30 2.07 2.08
Fourth: 1.34 1.00 1.66 1.69
Fifth: 1.00 0.74 1.26 1.27
Sixth: 0.75 0.50 1.00 1.00
Seventh: -- -- 0.85 0.85
Eighth: -- -- 0.66 0.65
Reverse: 3.99 2.90 3.93 3.82
Final drive: 3.27 3.73 3.27 (2.0L) 2.77
2.77 (3.6L)
Looks like the ratio in top gear for the 6 speed is exactly halfway between 7th and 8th for the auto.
Not great :-/. Now if you could take a 6.2L 6 speed and swap in the final drive gearset from the T2.0L 6 speed, you're in business. Except that starting in 1st would be painful.