so about 2 weeks ago I backed my 91 camaro into the garage to do some minor body repair, and yesterday i pulled it out and then when i went to back it into the garage the car kept popping out of reverse. It worked fine a few weeks ago so im guessing its something thats happend recently and im kinda hoping that its a linkage. any suggestions?

 

How does the fluid look? Could be low...

 

fluid is fine. that was the first thing i checked.. hehe.

 

Next would be something mechanical....