Cab swap

[fishnlunds]

I have a 2001 silverado 1500 4x4 ext cab with only a 100,000 miles on it, the front clip and bed are in perfect shape. However, a tree limb smashed the cab.

I have the opportunity to purchase a 2003 silverado 1500 4x4 ext-cab cab and was needing to know if I can just swap the new cab onto my truck and everything match up including the wiring harness? 

[Cammedsilveradodude]

I can't say 100% electrical will work due to connector styles and changes. But should be same electrical parts, so chop and splice in connectors from new cab to match truck if need be. Only body controls are inside cab. I believe engine pcm is front drivers side fender-ish.