Here what I want to do. I have a 1977 w200 full time 4x4 . It is a southern truck with no rust. It has a 318 and a 4 speed manual in it now. I have a 383 mopar I want to put in it. I also have a 318 wide block with a manual. Can I work with what I have or do I need to hunt down a big block clutch and bell?