Like Gord said, there's typically a lot of carryover between certain model years. Currently, the next model year is available early in the fall. On my daily driver F250, there was a "99.5" model that happened in December of 98, and then in March of 99, more changes were made. Here's the clutch pressure plate PN's. It says there's a break point between 53 and 54, but the actual build date of the truck, and how many of the old parts are leftover on the assembly line would make a difference when the actual change was made. Probably differs at each assembly plant as well.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
