I have a '91 postal Legacy with 220,000 miles that I use daily on a mail route, which developed a wine in the front differential, so I decided to change it out for a 75,000 mile used one. I've put in a '97 transmission from a 2.5 engine onto the '91, 2.2 engine as told by seller this tranny was ok for my aplication. (changed flex plate,and shift harness to 91) left side wire harness plugs in but wires are different. It shifted fine but was stuck in AWD. I tried to put power from FWD fused block ,no change. Brought power from fuse block to what I thought was the wire for the transfer clutch solenoid. Drove it and still in AWD now does not shift, seems to be in 2nd gear. What do I do now?