The 85 also had wide trac axles. Not all 86's had the dana 44 rear just the ones after they ran out of amc 20's. The biggest thing to look for is rust. Mainly at the rear of the frame and the body mounts. You should also take a look under the dash to see if the wiring is hacked up. What it really comes down to is that its a 30 yr old vehicle. Did the previous owners address issues properly, or rig it up to keep it going. You can expect to go through the entire steering and suspension looking for bad bushings or bad wear parts.