The transmission in my 89 Blazer is toast, and I have been looking to find a cheap replacement for it. I found a fully built one for $900, but it has a reverse manual valve body in it. Can it be easily switched out with the stock one in my trans, or is there something I am not thinking of? I want to take it out because I wouldn't be able to run the stock column shifter, the seat and center console set up I am about to put in would most likely interfere with a floor shifter and I'd rather not have a floor shifter. This truck is mostly street driven, although it will be driven tough, which is why I like the fact it is a built trans. I need help in all aspects of this thing, I know nothing about the 700R4 transmissions, and I know nothing about RMVB's as well. Please help with any advise and insight you can.