Go into my new K-5 this weekend, a 1973 350/TH350/NP203 12-bolt rear/Dana 44 front, and discovered that the previous owner was certainly more concerned with the trucks cosmetic appeal than he was with the maintenance of the Drivetrain!!! One of the cylinders was misfiring so I did some typical tune-up work and housekeeping. While under the truck I noticed that the "small oil leak" was more than that and had coated nearly every inch of the drivetrain from the oil pan on back with the typical layer of grime and road grunge. It also would appear that the transmission pan as well as both differentials are leaking fluid. In addition, the starter has been grinding for a while now. The noise is gut renching! The previous owner (again, I've only had the truck for two weeks now) claimed the flywheel/flex plate was in perfect condition but the, "damn guys at Advance Auto Parts keep selling me the wrong starter". I haven't pulled the cover to check but I think the problem is more than just the starter. Soooo, my list of questions: 1)If I yank the oil pan do I also have to re-seal the timing cover? If I've gotten this far should I also just replace the main seals? 2)Can I replace the flex-plate (it is a flex-plate and not a flywheel, right ) without dropping the transmission? 3)Cosmetically speaking, was everything Chevy Orange in the '73's? Thanks in advance for any guidance!