NO REVERSE - post getting stuck in snow

[cfh333]

Anyone that could give me an idea as to what's wrong with my car. I got stuck in a snow storm, by myself. So I had to ram and jam pretty hard to get out, GUESS WHAT, I got out. NO pushing or digging. I had reverse until the next morning, now all other gears are fine NO REVERSE.My 91 240sx is the best damn car I have ever owned. It's got 224,135 mi. and still hauls. I'm willing to put money into it but not sure how much. Any advice, tips, comments, please help keep my 240 alive.