Speedometer not working, so transmission is rough shifting

2001 CHEVROLET SUBURBAN
175,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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DAVID BARELA
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After installing a transmission from a 2003 Chevy trailblazer into a 2001 Chevy suburban, the speedometer doesn't work and the transmission isn't changing gears properly. I put a new speed sensor on.
Aug 28, 2016 at 4:29 PM
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SATURNTECH9
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I looked up what Vechiles are compatible with the 2003 trail blazer and it's only compatible with the 2003 Chevy suburban not the 2001 so right there could be your problem.I posted a list of compatible years and models that match your Vechile.
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Aug 28, 2016 at 6:04 PM
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SATURNTECH9
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Iam sorry there's a couple of different transmissions for the four wheel drive the one I posted for was one.There is more then one though.
Aug 28, 2016 at 6:07 PM
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SATURNTECH9
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Is this a 1500 or 2500?also did the one in the suburban have a removable bell housing on the transmission?How about the one from the trail blazer?
Aug 28, 2016 at 6:10 PM
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DAVID BARELA
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It's a 1500. Yes they both had removable bell housings . They are the exact same transmission, they had same numbers and all.
Aug 28, 2016 at 10:10 PM
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SATURNTECH9
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So what are the exact code numbers not code descriptions in the computer?So did the transmission work in the blazer?Also what was your old transmission doing before you changed it?
Aug 28, 2016 at 10:17 PM