Axle wont spin freely??
 

So I replaced my rear passenger wheel bear on my 2.8q today and i was just finishing up putting everything back together. I tightened the collar bolt into the axle to torque specs and now the axle wont spin freely? But when I back off the collar bolt just a little everything spins fine. The brakes are fine and everything looks fine. I just dont know why everytime I go to tighten the collar bolt it locks up the axle. Help!!! I have to work tomorrow!

are you sure it's seated in properly? quattro is very picky about that. if one axle isn't in properly, the car will not drive