So Ive been having some transmission problems. The first is when trying to get it to shift into reverse you have to sort of work the shifter a little back and forth before it catches and shifts. The next is when trying to move I push the gas and it will rev like crazy and not want to move and I can push the pedal a couple times and then it will finally start to move some. (most of the time just does this in reverse but sometimes in ohter gears) When it does this in reverse sometimes if I shift into a forward gear and drive 20 or 30 feet then shift back to reverse it will go on along much better. What could be the causes of this? Is the tranny just done for? I just bought the Blazer last year so I dont know a lot about the tranny. If its time for a rebuild how much do they usually cost at a shop or how hard would it be to do myself? If rebuilding what parts should I put into it? Upgrades? Never done any tranny work before but Im always up for a challenge!