i have an 84 shortbed with a 305/350th & will be swapping to a 5.3/4l60e what motor mount plates can i use to keep the original driveshaft. i'm thinking i need the plates to set the motor back 1". Also i'm sending out my pcm to get programmed now i know i need to get the vats and rear O2 sensors removed is it anything else besides that and the tire and gear ratio size. The engine is out of a 04 suburban