If youre still chasing vibes, I would check runout on output flanges, diff flanges, rotors, lug bolts. Since youve removed the DS, the shop can check that. Its a time consuming process but will yield the most accurate diagnosis. FSM has run out limit specs for each of the above.
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- #22
The shop finished my DS on Friday. Haven't had a chance to pick it up and talk with the tech. Will try to hunt down some specs for everything you mentioned above and measure.
I remeasured my flange angles with the DS removed. I'm 0.1 deg down off of the TC and 0.7 deg up off of the pinion. ( /
^I dont believe youll have that much wrap up-even with worn link arm bushings. You should be fine. I would not pay a shop to check runout on all those items, it will be a couple hrs labor- cheaper buying dial indicator, and mount and do that yourself.
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- #24
I've got a dial indicator around here somewhere. Will hunt up a mount and check things out. Appreciate your insight and recommendations..
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- #25
Drove my truck with just the front drive line and there was NO vibration.
Reinstalled my newly balanced rear drive shaft. Really no surprise as my vibration still exists.
I will take a look at checking run-out at all the various locations affecting everything aft, starting with the TC output flange. Because of the vibration frequency being so high (a buzz or drone), I'm betting it's not something vibrating at the speed of my tire rotation. But, I've been wrong before so I'll check it out just the same.
I don't know if checking run-out without the component being loaded will detect bearing slop. Here's an exaggerated illustration, yellow being the shaft and white the bearing. In the first illustration, measuring at any quadrant will essentially show no variance. If the shaft is worn, then yep, it should show a difference.
Reinstalled my newly balanced rear drive shaft. Really no surprise as my vibration still exists.
I will take a look at checking run-out at all the various locations affecting everything aft, starting with the TC output flange. Because of the vibration frequency being so high (a buzz or drone), I'm betting it's not something vibrating at the speed of my tire rotation. But, I've been wrong before so I'll check it out just the same.
I don't know if checking run-out without the component being loaded will detect bearing slop. Here's an exaggerated illustration, yellow being the shaft and white the bearing. In the first illustration, measuring at any quadrant will essentially show no variance. If the shaft is worn, then yep, it should show a difference.
