Hello all.... I am new to this site and just wanted some info. I recently purchased an 88 k5 with 350eng., throttlebody, 700r4. I bought this blazer as an everyday driver and have never taken it off-road or mudding. About a week after I purchased it, I was driving on a dirt road and thought I would put it in 4 wheel drive. I dropped it into 4H and took off. It started to groan as I came to a stop and also as I accelerated. I didn't like the sound and tried to shift back to 2H. It stuck in 4wheel drive (I know because I could feel the power from the front wheels turning.) even after my repeated attempts to manually shift it back. I didn't think it was a major problem until I started smelling the grease (ATF maybe?) burning. I hopped out and saw smoke or steam coming around the edges of the front diff. plate. There was also fluid dripping on the inside of my wheels. I shut it off and waited for it to cool down and somehow it shifted back to 2 wheel drive. It got me home. Okay... Question #1. I assume I burnt my front gears...correct? (I have not had an opportunity to pull the plate yet) Question #2. I have a father in law that owns a 76 k5 and wants to give whats left to me. (no body, no engine...everything else is there) Originally it had a 400 engine...I don't know what size tranny or gears it has. Is there any way I could use those parts to fix my blazer? I am married and have young children so price is DEFINATELY a concern. Only problem with this is he lives about 500 miles from me and wants me to pick up his blazer up quickly. (Like yesterday). Should I do this or would i be better off just looking for a new front diff....? Question #3 How many parts of his 76 k5 is compatable with my 88? Thanks in advance guys....I think this website rocks!