2wd and 4wd trans are pretty much the same but not interchangable due to shorter output shafts on the 4wd. If you don't want to rebuild it, (check on a priceand make sure to tell them it's 4wd) then get one out of a junk yard as they usually guarntee their transmissions to work and alot of times are cheaper. You can also get some form your GM dealers. But you have to install them. You don't need to change your t-case, just reinstall it, it just bolts to the trans.
Tuesday, October 19th, 2010 AT 2:06 PM