Trans Fluid Fill Procedure Question (Not the Usual Ones)

[Clavurion]

Originally Posted by andrewwynn

You can run the xdrive with the FRONT driveshaft off but likely NOT the back. You will have no way to stop the spinning of the output shaft. I suppose you can maybe go into neutral. I had a similar problem when I changed the transfer case and wanted to do some testing part way through assembly.

TC doesn't need the precision of transmission I actually filled that before installing into the car.

I remember at one point realizing it would be a problem trying to go from R to P if I can't hit the brakes.

You could possibly go to N and very quickly to P or just turn off the engine when done working through the gears.

Do you worry about the situation going from D to R or from D/R to P position? When torque converter is not locked there's not that much inertia that it should be an actual problem.

[andrewwynn]

Originally Posted by Clavurion

Do you worry about the situation going from D to R or from D/R to P position? When torque converter is not locked there's not that much inertia that it should be an actual problem.

I made the mistake of testing a wheel for scraping parts when I didn't have working brakes once. It was a very unpleasant clank into P. If I had to do again I would shift to N first it should stop within a few seconds and then quicky go from N to P.

I may try that with brakes and wheels on next time I have one of the AWD cars all wheels airborne.

I shift cars all the time from D to R or opposite when moving slowly. I'm not sure how fast the wheels will spin.

Actually: I think for the gears to really mesh you need the output shaft to be moving, prob good for the drive shaft to be off as long as you can use N to stop it. Would love to see some feedback from an expert.