Broken tranny?

[ashino]

I have changed my 98 AT legacy wagon, to a 5mt with a 3.90 final drive. Yesterday i changed my 3.90 rear diff that was not really the right shape for another one, which also had the ratio 3.90 (im quite sure). But when i took it for a test drive, there were some strange sounds, but most importantly i can rev the car, but it does not immediately move, sort of like an automatic, but then there are a lot of scary sounds.

I had a hunch after sleeping on this, that one of the rear axles is broken apart near the diff, and does not rotate the whole axle shaft.

Or that i broke something in either the transmission or the center differential...

if anyone has a clue what im on about, please help me.....

regards,bragi

[chuckthefuk]

If you broke an axle the car should not move at all since your using open-differentials and all the power is going to go straight to the broken axle.

What condition was the clutch/flywheel in when you swapped it?
- Chuck

[ashino]

If you broke an axle the car should not move at all since your using open-differentials and all the power is going to go straight to the broken axle.

What condition was the clutch/flywheel in when you swapped it?
- Chuck

Clutch was new, flywheel used, but in alright condition...

what if the axles is not broken clean, I think the joint is somewhat gone, and it maybe just spins when some force is applied?

[ashino]

solved, broken axle

[chuckthefuk]

Hmmm.. good to know.
-Chuck

[ouch1011]

Since the center diff is a VLSD, it will eventually "lock" and send a near 50/50 power split, so the car will move with a broken axle. It has to see a difference in speed for a short time before it activates, which is why the VLSD is not ideal for performance or off-road situations. Big differences in traction like that will quickly destroy the center diff though, so just beware if you drove it for too long.