The service manual for 47-51 says that the dowels should be pulled from the engine, the bellhousing aligned and then the dowel holes drilled with a 13/32" drill and then reamed to 27/64" for oversize dowels. The bolt holes probably have enough play to allow aligning without the dowels in place. I would imagine the process is the same for the earlier (1941) trucks.
The 55.2 truck service manual says to ream the dowel holes to 21/32" so from those measurements, the 235 dowels are already larger than the 216. The runout spec for the clutch pilot hole is 0.008 inches in both manuals, so it only needs to move 0.006 to get within specification.
Last edited by klhansen; 03/30/2024 4:36 AM.
