Gearbox questions

[Voodoo]

I'll be fitting a corsa gearbox (probably an f13 if I can't find an F15) to a nova with e16se engine.
However, the clutch kit for a corsa with f13 is a different part number to that for the nova with f13 (I'm assuming there are no differences in the box itself).
So, should I use a nova clutch or a corsa clutch? Is the difference in the flywheels?
Also, are there many different ratios and final drives between F13 boxes? What's the best compromise for motorway but also keeping good aceleration?

[Snowface]

3.74, 3.94, 4.18 are the most common.

[_JH_]

they may be the same part, but use the clutch for the nova with an e16se engine to be safe.

[Chris Astley]

both f13 gearbox's are the same, the difference is the flywheel and the pressure plate, the clutch spinner is the same.

[Voodoo]

Thanks guys, that's how I thought it would work.

Any gen on the best ratio/final drive?

[Stuart]

what od you do more, motorway cruising or back road terrorism?

3.94 for mostly motorway
4.18 for back road terrorism

[MechaT]

IIRC. F13's only have either 3.94 or 3.74 F. drive.

[Stuart]

ummm and changing them is the hardset thing n the world?!