2006 chevy cat eye 4x4 transplanted drivetrain from a 2000 Chevy - tranny & transfer case connection issues

[Timmy092574]

I have an 06 cat eye 4x4 bought a new motor and complete tranny and case 3verything matches up but everything on the transmission and transfer case all the plugs are different what's the fix or is there one without buying it all

 

[Fless]

Welcome to TYF! Moved the thread here for you.

 

[Timmy092574]

I have the harness out of the 2000 do I just go cut the plugs off the 2000 harness and.wire them in any help 2ould be greatly appreciated

 

[Timmy092574]

Welcome to TYF! Moved the thread here for you.

Thank you

 

[adventurenali92]

The difference in harnesses is due to the fact that the 2000-2002 pickups and SUVs ran off of an analog electrical system. The 2003-2006 pickups and SUVs run on a digital electrical system. It’s totally different. That’s why switches and anything electrical from a pre 2003 rig won’t function in a post 2003 rig. Not sure what the fix is for you on the drivetrain component harnesses. Hopefully someone more knowledgeable will chime in.

 

[OR VietVet]

Welcome to the forum and did you reach out before the swap about possibly any thing to know, like @adventurenali92 said. I am very unsure about these swaps and always ask. Did a friend or shop say, "no problem"?

 

[Timmy092574]

Welcome to the forum and did you reach out before the swap about possibly any thing to know, like @adventurenali92 said. I am very unsure about these swaps and always ask. Did a friend or shop say, "no problem"?

Yes exactly I've got this new motor and transmission is rebuilt new transfer case and I'm installed and sitting was gonna start swapping plugs on the harness and I thought I might need to ask someone smarter than I

 

[OR VietVet]

So, the answer is, you did not reach out before at all and are asking now? I get it but just want to be sure where we are starting from.

 

[S33k3r]

Yes exactly I've got this new motor and transmission is rebuilt new transfer case and I'm installed and sitting was gonna start swapping plugs on the harness and I thought I might need to ask someone smarter than I

You're going to need the pre-2003 electronics to control everything. I suggest looking at your transmission; is should be stamped with the year it was originally built. If it is newer than the the truck you are placing it in, it will likely still work, but you are going to have to modify it... That modification is outside my area of expertise, for now.