yes you can.I have 2004.5 2500HD CC SB Duramax/Allison EFI live etc- I have a stage 4 trans kit and want my truck off the road as short a time possible -I can buy a secondhand Allison 2 wheel drive transmission. Can I rebuild the 2 wheel drive one, then take bits off rearend of mine and put back onto 2 wd one before putting back into my truck. Thanks anyone
mike