Thread: 03 5.3 silverado TB on a 05 GTP

so my firend has one laying around and was wondering it it would bolt up and work on my GTP

You would need a throttle body adapter to get it to work.Make sure its drive by wire as some of the 5.3's still used the cable type throttle body.

It's a LM7 throttle body. Would there be a downfall to installing it?