c900 2.0 16v 5 sp gearbox

[dickiemint]

Can Any One Tell Me Which Other 900s Have The Same 'box As My C900 Convertible? It's H Reg 1990 2.0 16v 5 Speed. So In Essence What I'm Asking Is Do The C900s All Have The Same Manual 'box Or Are There Variants? Any Help Is Much Appreciated. Cheers, R.

[woywitka]

You can use any 900 box. Your best bet is picking up a 89+ 900 box becuase they are updated with better parts. turbo boxes are even stronger. Boxes improved again in (1991?) for better shift performance. You should try to avois pre 89' boxes as they tend to be weaker and worn out. WHat about rebuilding your current box? On a convertible (worth $$$) it is worth the investment.

[Jezzadee]

Some variation in primary gearing - eg type 6 is for n/a and LPTs where you are doing roughly 3100rpm at 70mph. Type 7 was found on later 16V turbos and would be more like 2800rpm at 70mph. There are some rare type 8s which are lower still. It should say 6, 7, or 8 in the gearbox number somewhere, but I can't remember where.

[gorper]

Originally Posted by woywitka

turbo boxes are even stronger.

There is nothing in a Turbo box to make it stronger. In some markets, for some years, the only difference between a Turbo and non-turbo box is the primary gear cover (different motor mounts); the internals are identical.

[Matt88S]

Originally Posted by gorper

There is nothing in a Turbo box to make it stronger. In some markets, for some years, the only difference between a Turbo and non-turbo box is the primary gear cover (different motor mounts); the internals are identical.

There is a differance, I've forgotten what it is though. I think on the pre89 or pre 91 boxes the turbo box had a little bigger front bearing than the nonturbos or some such thing. I think after 89 or 91 they all got the bigger bearing regardless of turbo/nonturbo. Or something like that. Now the autoboxs are diffently different but I'm getting off topic here.

[TheRedBaron]

Some would say, too that the 89-90 boxes were better than the 91-93, even though the pinion is bigger, it is supposedly not as well engineered...could just be the way they drove, though...

[Matt88S]

Originally Posted by TheRedBaron

Some would say, too that the 89-90 boxes were better than the 91-93, even though the pinion is bigger, it is supposedly not as well engineered...could just be the way they drove, though...

And then some would say you just can't beat that good ol'e 4spd.....

[shaverjeff]

4-speed turbo is definately the way to go!
Who needs good gas mileage when you can have rpms?

[dickiemint]

Just thinking out loud hear but does the 9000 gearbox transplant to the C900? Thanks for all the info so for.

[900t]

Nope elkparts