2002 GMC Sierra

2002 GMC SIERRA
60,000 MILES • V8 • 4WD • AUTOMATIC
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LINCOLNROSE61
  • MEMBER
  • 1 POST
Transmission just went out on 2002 GMC Z71 4-wheel drive truck with only 60,000 miles. No warning. Loud clunk and now only couple gears and no reverse. What could have went wrong and what should I do, rebuild ( remanufactured ) or new or could it be something small ?
Nov 10, 2008 at 12:26 PM
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MASTERTECHTIM
  • ✓Experienced Mechanic
  • 4,750 POSTS
these transmissions are pretty much bulletproof but from what your describing its internal and will need rebuilding. if it was a transfer case problem it would still have forward gears. on this model if cost is a issue then i would have no problem installing a used transmission from the salvage yard because they are so reliable.
Nov 10, 2008 at 12:31 PM
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