Swappable manual transmissions & specs

[Daox]

Here is a list of swappable manual transmissions.

D16
2004 - 2009 stock Aveo transmission.

Ratios:
1st - 3.55
2nd - 1.95
3rd - 1.28
4th - 0.97
5th - 0.76
Final Drive - 3.94





D??
2010 stock Aveo transmission.

Ratios:
1st - 3.54
2nd - 1.95
3rd - 1.28
4th - 0.89
5th - 0.71
Final Drive - 3.94






D20
Manual transmission found in the Suzuki Forenza.

Ratios:
1st - 3.55
2nd - 2.16
3rd - 1.48
4th - 1.13
5th - 0.89
Final Drive - 3.55




I'm also guessing we could swap differentials between the D16 and D20? Anything else missing?

[ontarian_frog]

The 2010 transmission with the D20 final drive would be the ultimate for getting better mileage.

[Daox]

Quite true. You'd drop roughly 300 rpm @ 65 mph.

But, does anyone know if you can actually do this or not?

[petrified.rabbit]

Iirc you cannot swap final drives between transmissions but you may be able to swap gears. So you can't put the d20 final drive in a d16 but you could potentially put a d16 5th gear in a d20.

There are more transmissions from opel that will fit with some work, includes the f28 (think withot looking ) 6 speed which has close ratio and taller cruise gears.