2004 Silverado donor question

[kglowacky]

there is some little stuff you need to remove especially if you are on a tight budget.
drive shaft yolk (keep entire driveshaft u may be able to cut it down and re use
complete wiring harness (Engine)
Exhaust system (front part coming off manifolds, 02 sensor connects)
if tight on money just get the original harness modified, save money not buying new one
Gas petal and system
DO NOT cut any wires disconnect every one of them. The ends connectors can be very important and re install

This are just some of the things I've seen people have to re buy as they sent the donor to the wrecking yard and had to re buy.

Try not to break or cut anything, it will add to your cost.
I'm sure others will add to this.

I want to add; I just helped a 1st timer do a conversion after he got rid of the donner and the other recommendation is install the transplant as complete as you can and don't start replacing oem parts with aftermarket parts until u get it running. Then replace one part at a time. My friend replaced parts before it ran and caused issue after issue with this crap people are selling from China AND US.
if something doesn't work the 1st time always keep in mind it could be a defective part not your labor and fault.

Good luck. It will be a rewarding experience with some bumps along the way