1988 subaru gl wagon stuck in 4 wheel

i have a 88' subaru gl wagon automatic that is stuck in 4 wheel drive. i push the switch on the shifter to take it out of 4 wheel and it doesnt go into any gear. there is some sort of binding going on in the transmission as well. i checked the fluids and the diff oil the diff oil was empty so i filled it up and it got worse. I NEED HELP!!! PLEASE!

I believe it might be a vacuum leak. Check for that. If you do not find anything wrong with vacuum I recomend you to visit www.ultimatesubaru.org. This site is awsome! Members are very knowledgeablbe. Click on forum and then on "Older generation"

Good luck,

Sam