I got a 10 inch NOS pressure plate for a 41 Desoto on Ebay, I'm pretty sure the Truck originaly was supposed to have a 10 inch clutch. I also picked up a NOS 10 inch disk on ebay for a D14 , D19 but the disk is only 1 1/2 inch wide on the facings and the pressure plate is 2 inches wide , I'm thinking this should work anyway but would like to get the right disk if it's not. Your probably right about the other years that fit. Before I figured out that the truck should be a 10 inch clutch I found a place to get a 9 1/4 inch disk and pressure plate so I have those also.(Rochester Clutch and Brake)Excellent to deal with, good prices and fast on the shipping, I found out about them from a post on this site but don't remember how I found it. For anyone interested the flywheels already have both sets of holes drilled and taped for both size pressure plates. Thanks for the replies, still trying to find out about that facing size though.