Brake Drum Interchange

[Merle Coggins]

I got to thinking... (not always a good thing ?)

 

Brake drums for 3/4 ton Pilot-House trucks can be difficult to find which got me thinking, "do any of the cars of that era use the same 11" brakes and possibly the same drum?"

The 1/2 ton trucks have 10" X 2" brakes up front and 11" X 2" brakes on the rear axle, and they use hubs with wheel bolts with 5 X 4-1/2" pattern like the Plymouth's use. The 3/4 ton trucks have 11" X 2" front and rear and use hubs with wheel studs and 5 X 5" pattern. 

 

Do any of the cars, presumably the heavy long wheel base versions, use 11" brakes with 5 X 5" bolt pattern? If so this may give us 3/4 ton truck owners another source for brake drums when needed.

 

Also, if anyone has a master parts catalog, or a cross reference guide, are there any matches to my part numbers?

The truck parts book shows all 4 brake drums to be the same. P/N 1188218

The front hubs are P/N 923063

The rear hubs are P/N 1194136

No rivets are listed for 3/4 ton trucks. Apparently the studs retain the drum to the hub.

Stud P/N's (10 each) are 593978 for the Left side, and 593979 for the Right side.