The Ford Barn

Daniel f · 06-29-2020, 11:50 AM

My Model A was converted to Hydraulic brakes in the 1970s I need to service and replace the rear drums and I need help identifying what they are? Please help ID

1931 flamingo · 06-29-2020, 02:09 PM

40-48.
Paul in CT

Bob C · 06-29-2020, 02:20 PM

1939-42 backing plates.

Jim Brierley · 06-30-2020, 12:32 PM

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Any 1940-48 drum will work for you. They may not have the same outside shape, but will directly interchange. You should have a tin gizmo to capture any grease slung off the wheel brgs. and keep it off the linings, not important unless there is a leak. Early drums like these are still safe with as much as .125" over-sized. If you are running wire wheels, you also need a wheel adapter as hyd. drums have a flat surface for the wheels to mount against, Ford wire wheels have a step in them. Good luck!

06-29-2020, 02:09 PM	#2
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,390	Re: Brake identification 40-48. Paul in CT

06-30-2020, 12:32 PM	#4
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,085	Re: Brake identification Sponsored Links (Register now to hide all advertisements) Any 1940-48 drum will work for you. They may not have the same outside shape, but will directly interchange. You should have a tin gizmo to capture any grease slung off the wheel brgs. and keep it off the linings, not important unless there is a leak. Early drums like these are still safe with as much as .125" over-sized. If you are running wire wheels, you also need a wheel adapter as hyd. drums have a flat surface for the wheels to mount against, Ford wire wheels have a step in them. Good luck!