50adrod,
I'm in the process of installing a 2006 6.0 w/4L80E trans in my 61 4x4 Burb.I have the motor in the chassis and the plan in my head just can't get the ambition .I'm going with a company called
www.speartech.com to modify the O.E. harness $450 but he wants a $300 to reflash the ECM.I have also encountered an issue with the P/S pulley it interfears with the frame which you may encounter as well.My plan is to notch the frame and build additional support.I don't know how the frame is on your AD but the exhaust also hits the frame on the right side but this can be worked around.Any information you are willing to share would be greatly appreciated.I did buy a book off ebay in regards to modifying the harness yourself.Drop me a PM and we can possibly help each other out.
