Jalaska907

Hey there everyone. I'm looking at doing my first LS swap. Not a true LS but same basic platform. Here's my components I currently have, and wanting to see what it would take to use what I have.

Swap is going into a 1968 GTO
Current engine I have 2000 6.0L, with harness and ECM (iron head, Longer crank)
2000 4L80E 4x4 transmission, mated up to current engine
2004 4L80E 2wd transmission

I really would like to use the 2wd trans which is an 04, and use my current 2000 6.0 for the swap.

I know they bolt up, Im just not sure what to do with wiring, ecm being that there is a few year spread.

Thanks everyone for the help, I know this has been discussed on here before, but Im new to the forum, and cant locate the exact info I need.

the_merv

iTrader: (88)

It'll work, just take the 4wd stuff out of the harness and install it on the 2004 Trans. Only thing about the 2wd trans of that year is you won't be able to use both speed sensors.