Hey all, i'm trying to get some information for a buddy of mine who wants to do an 04 gmc sierra 4wd with a 4.3 to an 05 5.3 swap. i have done 2 swaps before but never run into the issue where his 4.3 is a drive by cable throttle body yet the 5.3 harness is drive by wire. is it smarter for him to get a 99-02 harness or to buy the electronic pedal and TAC module? Can the 05 5.3 harness be used with the 99-02 throttle body by simply leaving the plug undone or will that simply not work. Thanks for any info you can provide.
09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,