I recently bought an 04 4.8l vortec out of a tahoe and am going to put it in my jeep. My question is if the computer out of a 5.3l vortec will work. I know the 4.8 and 5.3 share the same block. I need the computer and a wiring harness. Would these have to come from an 04 as well? I was also wondering if you guys know if you can change the fly-by-wire throttle body to a drive-by-cable, like the earlier 99-02 vortecs. any information would be appreciated thanks.