Swap and wiring differences gas vs diesel

[Chevy6.slow]

Wrecked my 2000 2500 6.0 truck. Have found a 2001 roller that had a duramax in it. I have my complete trucj to use as parts.

 

I think these models are similar in harnesses (no change) , but wondering if most engine and body harnesses would clip up?

 

I know I need to change fuel tank and lines and would need to change gauge clusters, but anything else?

 

Will be a big project, but as long as wiring doesn't get me stuck then I am on board..... I think!

[davester]

I would think the harness for the engine would be different enough to warrant swapping the harness over vs trying to patch one in the truck to match the engine. Is the option level for the two vehicles roughly similar?

[00Silverado4x4]

Pretty sure the engine wiring harness will be completely different...or at least enough that I would see about swapping or replacing the harness.

[Chevy6.slow]

I intend to swap everything underhood. I've been under impression if I do so the ecm etc should clip up and talk w body harness no issues . Is this wrong?

 

They are similarly equipped trucks as far as interior options etc.

[Chevy6.slow]

I've messaged a couple guys that's done similar swaps , or reverse of mine, that said should be straightforward given the closeness of year models and whatnot

I've messaged a couple guys that's done similar swaps , or reverse of mine, that said should be straightforward given the closeness of year models and whatnot