In article <r7qnf.138583$Ph4.firstname.lastname@example.org>,
> U-Joints seem ok but I will check again just to be sure. Is it critical
> that one marks drive shaft when replacing center bearing?
If you inspect the drive shaft closely on either side of the joint at
the center support, you will see a small, faintly stamped set of arrows
pointing at each other. This was the orientation of the shafts when they
were balanced as a unit at the factory. You likely will have to do a lot
of cleaning to find the marks. The longitudinal length of each arrow is
about 1/2" with often just a single line for the point at a 30* angle.
The drive shaft alignment should be: )=====-(|======|, where )and(
represents the orientation of the front joint and the forward joint on
the front shaft and | represents the opposite joint sections rotated in
the same plane by 90*.
The goal when driving is to miss the maximum number of objects.