1994 GMC Sierra Transmission swap.

1994 GMC SIERRA
17,500 MILES • V8 • 4WD • AUTOMATIC
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YATO3MTA3
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  • 2 POSTS
What Make & Model of transmissions will fit my truck with & without adapter plates?
Nov 21, 2008 at 12:39 AM
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MMPRINCE4000
  • CAR REPAIR CONTRIBUTOR
  • 8,548 POSTS
Your best resource is a local junk yard, they have interchangeability manuals just for that purpose.

If your intent is to go from a 3 speed to a 4 speed, for example. They may fit, but the control system may not be compatible (cables, ECM etc.).
Nov 21, 2008 at 7:20 AM
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