??
Thanks in advance.
Trent

The front bolts are a pt. #1188906 which is 9/16-18 x 1-3/4 OA length. The rear bolts are a different pt. #1188907. My book doesn't give the length. The difference in the two apparently is in the length, not the thread pitch. The fabricast aluminum drums on the front used a little bit longer bolt than the cast iron rear drums.