I got stuck in some mud the other day, went to shift into 4 wheel drive and the shifter just floats freely feels like it is not connected to anything. rear wheel drive still works fine. is there a linkage that may have come apart or broken? and most importantly is this something i should attempt to fix with my limited mechanical ability,tools and knowledge or should i take it to a shop. i had to be pulled out by a ford...very embarrassing!!! Thanks in advance for any help or advice you have to offer