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The purpose of an Automatic Transmission is similar to that of a manual transmission, the auto tranny's primary duty is to allow the engine to operate in its narrow range of speeds while providing a wide range of output speeds.
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07 Colorado tranny in 00 Astro

July 5th 2020, 4:56am

Other than possibly the output shaft and bell housing any other hurdles I would encounter sticking a 07 Colorado tranny in my 00 van?

Also may have a tranny from an 07 Sierra but it would be same deal as the Colorado tranny if I am not mistaking.

Re: 07 Colorado tranny in 00 Astro

July 6th 2020, 11:18pm

The electrical connections might not be the same. I can't imagine that you couldn't swap them, but then you're taking apart your trans and the new one...

I have no idea because I've never actually looked at a 4L60E newer than on my '05, but that is something I had to be aware of when I bought a replacement 42RLE trans for my '05 Jeep Liberty (3 driver's side electrical connections vs 4 connections, same year tranny but one early, one late).
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