Posted by Jack Gypin on June 09, 1998 at 10:24:17:
In Reply to: THANKS JACK posted by Rick on May 31, 1998 at 19:36:32:
: thanks for the suggestion Jack. I wonder if you could be more specific. How do I check the phasing of my drive shaft? I appreciate any help. Rick
: :
: : Check the phasing of the driveshaft.
If you didn't match mark it or it wasn't done at the factory match mark the drive shaft at the front then disassemble the shaft and yoke. Then reassemble it w/ the marks
180 degrees out. Test drive the truck. If this doesn't remove the vibration or makes it worse it isn't the phasing. For a two piece drive shaft do the same to one piece,
again if it stops vibrating you're good to go. If it doesn't help or makes it worse reassemble it as before, then do the second shaft. Test and if doesn't help you've
eliminated phasing as a source of the vibrations.