Planning a build, input on retaining 4x4

[Burbintheburbs]

1. Ok Guys,
   
   I love these old trucks,
   
   I'm looking at a couple crew cab long beds and considering buying to do a Lq4/9 swap
   
   I have a couple questions:
   
   If I find a complete drive train with trans/transfer case/ PCM/ Harness; can I likely tie it into the current 4x4 setup?
   
   If I choose to use the existing transfer case and trans (4l80e) is it that much easier?
   
   Thanks in advance
   
   
2. Goals are for fully functioning 4x4, not a major crawler but a hunter and have some acreage that 4x4 is non negotiable.
   
   Input appreciated

 

[ryeguy2006a]

When Jay did the LS swap on my truck he kept everything stock from the bellhousing back. He used the stock mounts and a set of 1" setback plates from ICT Billet. He used the stock re-pinned harness for the 411 ECU and modified it for the additional wiring that the LS needs such as coils and etc. Feel free to PM me with any questions.

 

[Supercharged111]

As I recall the 6.0 uses a spacer or something to get it to work with the 4L80E so if you're willing to keep your trans/t case this is definitely the easiest option as the 6.0 should bolt right up especially if it came from a 2500 truck. LQ9 may require said spacer or whatever they used, but will all be off the shelf stuff.