MsclTrk

I am swapping in a 5.3 4l60e combo into a 1990 c1500 that originally had a 355 700r4 biggest thing I need help with is wiring if there is somewhere close in omaha, Ne I can send it to or someone help me out and walk me through it

Jeebalow

iTrader: (3)

lt1swap.com has all the info you need to do it yourself. Or you could send it to a few places or just buy one that is made for your swap from Nelson, PSI, etc.

MsclTrk

How hard is it to do I don't have much knowledge on wiring work and how much would it be to buy a new one

thunderwagen

iTrader: (3)

The aftermarket harnesses are pretty much plug and play and have a 3 wire hook up to get em going.

The biggest pain in the *** is going through and deleting all the factory wiring you don't need if you want to clean it up under the hood.

SCOTT_A

iTrader: (1)

Lt1 swap.com is very helpful. If you take your time and follow directions from this site you will save a lot of money.

GREENSIERRA

my brother is away on holidays right now but he did his own harness on his 92 5.3 swap.
when he gets back I will ask him where he got his info from and if he has any tips

Jeebalow

iTrader: (3)

I did my own. Got all my info on lt1swap.com. He literally has a step by step. And the pinouts for the LS. I also used alldatadiy to get the wiring diagrams for my truck to figure out ABS and cruise (I have yet to see if what I did will work on ABS and cruise)