You will still have 4 wheel dr as the transfer case provides that, but the 2wd trans will be somewhat weaker as far as the outer case is concerned. My old blazer wheeled for a long time with a 2wd trans.It just needs to be the same trans as what your taking out so the adapter will match, otherwise you will be looking for an adapter as well. also measure the tail piece(or the trans you have and match it to the one you are getting) because there are several lengths and it will through off the cross member location and the drive shaft lengths. just a couple of things to consider