Doing a swap for your vehicle would be alot easier than it was for mine. If your swap engine is close enough in year of manufacture to the original engine, it may be a simple matter of plug and play. That depends on keeping the original trans and reflashing your original PCM or getting one for the 6.0..
The 4L80E is the heavier duty trans and is longer than the 4l60/65E. The 4L60/65E may hold up behind the 6.0, but with the lift and bigger tires, and the fact that you will be hauling with it, you may just want to go with the 4L80E. That would mean swapping driveshafts from a donor vehicle or having the front shaft lengthened and the rear shaft shortened. Also have to consider trans/transfer case yokes since they are different. Just a few things to think about. I'm sure someone will chime in and correct me or add some things that I have missed. Good luck!!!!!
Last edited by Mickeymotormount; 07-28-2013 at 05:11 PM.
'93 Chevy 1500 4X4 ECLB with a '99 Silverado LQ4 6.0 and '99 Escalade 4L60E. SOLD IT!!
New toy: 2001 2500 HD 4X4 Extended Cab Long Bed
John