Drivetrain applications?

2001 CHEVROLET SILVERADO
260 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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NATHANLIND0
  • MEMBER
  • 2 POSTS
Hi, I have the truck listed above,1500 with the 5.3, 4L60E transmission and a 3:73 axle. I'm thinking about rebuilding the 5.3 the same way as was shown on YouTube and I'm wondering if I change the 3:73 to a 4:10, will the stock transmission handle the rebuilt engine and new gear ratio? Or will I have to buy a different transmission?
Sep 30, 2022 at 9:30 AM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
Yep, the transmission should be okay, I would change the fluid out and install a new filter, also the 4:10 gears will make it go much better so I would definitely change those out.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Let us know what happens and please upload pictures or videos of the build. We are interested in seeing it.

Here are the LS build videos:

https://www.youtube.com/playlist?list=PLe3kz1i_LrtX5402mzO6ovoz8xeUdwZ8B

Please let us know what happens.
Sep 30, 2022 at 11:29 AM
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