I just found this site and have some questions on my truck I just bought last weekend. It is an 85 chevy 3/4 ton 4x4. I bought it at an auction for 600 bucks. The body is in excellent condition with no rust. The interior sucks but I plan on fixing it. I want to put some money into this thing and just need to find out more about it. I would like to add a lift and possibly some 35" tires. It runs good, has a 350 motor with an automatic 3 speed tranny. There is no drive shaft for the front end so the 4wd doesn't work. When I shift into 4wd it grinds and won't even move. What could cause this? I have no background on the truck. What transfer case does it have? How do I know which one it is? What axle should I upgrade too or should I stick with the stock axle? Thankyou for any help you can give me.