1993 GMC Suburban ujoints or tranny?

1993 GMC SUBURBAN
200,000 MILES • V8 • 2WD • AUTOMATIC
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EARLYBIRD70818
  • MEMBER
  • 1 POST
While accellerating, more so under a load, vibration coming though both pedals (gas and brake), steering wheel, everywhere! Once you let off the gas, all is great. I checked the u joints, they're both tight, solid, and no "play". However, coming out the rear of the tranny (shift housing?, 4 bolts holding it the the trans itself), there is a trans leak. If I shake the drive shaft, there's play on the yoke coming out of the trans. There isn't any play at all at the differential, just the yoke. Does this require an overhaul of the trans, or is this a basic bearing/seal I can change in the driveway?
Feb 2, 2009 at 4:08 PM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi:
Some play is normal. There is a bearing in the tail shaft that may be bad, but also check motor mounts and trans mount. The rubber in the mount can wear and cause a metal to metal vibration from the powertrain.
Feb 17, 2009 at 1:49 PM
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