Brent -
According to the parts book, the pedal in your truck and Tony's actually is a 3/4 ton and 1 ton truck pedal, or as it is called in the book, "button." It calls it out at 1 1/2" in diameter and a threaded hole for a 1/4" - 28.
Brent, your truck looks like a 1/2 ton truck and I've seen a picture of Tony's truck and looks like a 1/2 ton truck, but I don't know if that is the case. If they are 1/2 ton trucks, someone may have put a 3/4 ton toe board in your truck and a 3/4 ton accelerator "button". The 3/4 ton toe board would fit and the accelerator rod and button would fit also, but I can't even guess why that could be.
