Transmission swap

2002 GMC SIERRA
175,000 MILES • 4.8L • V8 • 4WD
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NOELARMSTRONG85
  • MEMBER
  • 1 POST
I want to know if the transmission from a 2000 Chevy Trailblazer 4x4 is interchangeable with the transmission in my 2002 GM Sierra 4x4 single cab?
Jul 29, 2019 at 6:56 AM
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KENW1
  • ASE Certified Mechanic
  • 213 POSTS
  • ASE Certified Mechanic
Hello, the Trailblazer was not available until 02 and had a 4.2l engine which had a bell housing design on the transmission that would not work with your truck.

2000 Blazer had the 4.3 which had a transmission with bell housing design that will interchange with your truck as long as you have the 4l60e which most did. An easy way to tell is counting transmission pan bolts. the 80e has 17 while the 60e has 16.
Jul 30, 2019 at 10:08 AM
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