In regards to the engine and trans, all I planned on doing and all that I did was clean it up by getting all the built up grime off of it. I did install a new raw water pump as the old one was beyond shot and the repair/rebuild kit did not fix it. I also installed a new engine wiring harness and that is about it. The reason I elected not to overhaul the engine is that everything works on it and it is rock solid at the moment therefore no need to go "fixing" something that is not broken.