[2011GT302]

I was driving my wife to work in her Truck (SUV) and was headed to the freeway and just before the ramp the truck hit OD and started spinning the engine in neutral. So I turned OD off and it runs fine and shifts perfect. I did some research and I guess the OD clip likes to break in the transmission. I live in Glendora and need to get this fixed cheap and quick, any suggestions? From what I have been reading it is a fairly easy fix and the transmission will not need to be removed. I dont know anything about automatic transmissions so I won't do it myself nor do I trust myself enough to try.
Please Help!!!