95 s10 blazer 4x4 rear end swap
 

I have a 95 s10 blazer with a G80, GT4 3.73 gear rearend. I need a new rear end. Will a rear end out of a 2000 s10 blazer fit without doing any other changes?
It has disc brakes in the back and mine has drum brake. Do I have to change any brake components under the hood, or break lines going to the back?
I may be able to buy this rig for a parts rig. Will the transmission, body parts and such interchange with mine?

Is there another rear end that would interchange with mine?

Any help you can give me will be much appreciated.
Thanks