The Ford Barn

coxswain98 · 05-22-2023, 11:19 PM

What is the maximum ID a wide 5 drum can be turned before needing replaced?

deuce lover · 05-23-2023, 01:11 AM

12.060"

Terry,OH · 05-23-2023, 05:43 AM

There is no published diameter or specification from Ford.

V8COOPMAN · 05-23-2023, 10:54 AM

Quote:

Originally Posted by Terry,OH

There is no published diameter or specification from Ford.

......... yet based on the premise that we have always deemed 12.060" to be the recognized safe - and LEGAL limit - for the '40-'48 drums, I can't imagine why we would assume that the similarly-constructed '36-'39 drums would fall under a different specification.

Coop

.

rich b · 05-23-2023, 11:25 AM

If 12.060 is max to turn the drums; what diameter is the wear limit?

Terry,OH · 05-23-2023, 11:38 AM

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There is no Max Dia. Spec. published by Ford for the 40-48 drums either. I know others have applied their knowledge to this issue, over years on fordbarn.com but I can find nothing in writing from Ford. IMO there should be some Spec. I am not the person to develop the Spec.

DavidG · 05-23-2023, 01:37 PM

Some say 12.090", but again not based on Ford documentation.

rich b · 05-23-2023, 01:52 PM

Wonder what the deciding factor was in olden times; must be a reason that I find so many brake shoes with shims behind the linings.

Kurt in NJ · 05-23-2023, 02:02 PM

the maximum diameter depends on what state you are in .many different rules, i

alanwoodieman · 05-23-2023, 03:16 PM

maximum dia depends on arc of the brake shoes, so say old line ford mechanics

Newc · 05-23-2023, 03:17 PM

At one time a thicker brake material was available for your shoes. I believe discontinued now. 12.060 is some what standard and hard to find. Newc

05-22-2023, 11:19 PM	#1
coxswain98 Member Join Date: Jul 2020 Posts: 77	Wide 5 drum inner diameter What is the maximum ID a wide 5 drum can be turned before needing replaced?

05-23-2023, 01:11 AM	#2
deuce lover Senior Member Join Date: May 2010 Location: Southern France Posts: 5,334	Re: Wide 5 drum inner diameter 12.060"

05-23-2023, 05:43 AM	#3
Terry,OH Senior Member Join Date: May 2010 Posts: 4,797	Re: Wide 5 drum inner diameter There is no published diameter or specification from Ford.

05-23-2023, 11:25 AM	#5
rich b Senior Member Join Date: May 2010 Location: Minnesota Posts: 1,847	Re: Wide 5 drum inner diameter If 12.060 is max to turn the drums; what diameter is the wear limit?

05-23-2023, 11:38 AM	#6
Terry,OH Senior Member Join Date: May 2010 Posts: 4,797	Re: Wide 5 drum inner diameter Sponsored Links (Register now to hide all advertisements) There is no Max Dia. Spec. published by Ford for the 40-48 drums either. I know others have applied their knowledge to this issue, over years on fordbarn.com but I can find nothing in writing from Ford. IMO there should be some Spec. I am not the person to develop the Spec.

05-23-2023, 01:37 PM	#7
DavidG Senior Member Join Date: May 2010 Location: southeastern Michigan Posts: 10,134	Re: Wide 5 drum inner diameter Some say 12.090", but again not based on Ford documentation.

05-23-2023, 01:52 PM	#8
rich b Senior Member Join Date: May 2010 Location: Minnesota Posts: 1,847	Re: Wide 5 drum inner diameter Wonder what the deciding factor was in olden times; must be a reason that I find so many brake shoes with shims behind the linings.

05-23-2023, 02:02 PM	#9
Kurt in NJ Senior Member Join Date: May 2010 Location: on the Littlefield Posts: 6,181	Re: Wide 5 drum inner diameter the maximum diameter depends on what state you are in .many different rules, i

05-23-2023, 03:16 PM	#10
alanwoodieman Senior Member Join Date: May 2010 Location: upstate SC Posts: 2,986	Re: Wide 5 drum inner diameter maximum dia depends on arc of the brake shoes, so say old line ford mechanics

05-23-2023, 03:17 PM	#11
Newc Senior Member Join Date: May 2010 Posts: 2,528	Re: Wide 5 drum inner diameter At one time a thicker brake material was available for your shoes. I believe discontinued now. 12.060 is some what standard and hard to find. Newc