Front drum brake squeal
Thread Starter
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Cross-Country
Joined: Jun 2002
Posts: 77
Likes: 13
From: Tucson
Front drum brake squeal
Got a 3" brake shoe on the front of my '68 F100 causing a squeal when the metal edge of the shoe hits the drum as the brakes are applied.
I see a shiny edge of the shoe and a shiny ring inside the drum at the inside corner. Any ideas what could be the cause? Maybe the old spring not keeping the shoe tight to the backing plate?
Thanks for your thoughts.
I see a shiny edge of the shoe and a shiny ring inside the drum at the inside corner. Any ideas what could be the cause? Maybe the old spring not keeping the shoe tight to the backing plate?
Thanks for your thoughts.
FTE Legend
Joined: Nov 2015
Posts: 30,912
Likes: 4,123
From: Angier, NC
Shoe to wide for the drum?
What are the options for the front shoes for your truck was a 3" even an option?
That 3" look too wide for a F100, I think something like 2.5 wide
I take it they are new did you do the job or someone else?
If you and still have the old shoes measure across them to see what they are.
Dave ----
EDIT
I just looked up brakes for your truck with a 300 six and it dose list a 11 x 3 and a 11 x 2 for the front.
The rear has listed 11 x 2.31 so guessing a 11 x 2.25
So if your truck came with 3" shoes then the drum may need to be turned to have the drum clear the edge of the shoes.
What are the options for the front shoes for your truck was a 3" even an option?
That 3" look too wide for a F100, I think something like 2.5 wide
I take it they are new did you do the job or someone else?
If you and still have the old shoes measure across them to see what they are.
Dave ----
EDIT
I just looked up brakes for your truck with a 300 six and it dose list a 11 x 3 and a 11 x 2 for the front.
The rear has listed 11 x 2.31 so guessing a 11 x 2.25
So if your truck came with 3" shoes then the drum may need to be turned to have the drum clear the edge of the shoes.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
1967 F100's have 11" x 2" front brakes, 11" x 1 3/4" rear brakes.
1968/72 F100 2WD's have 11" x 3" front brakes, 11" x 2 1/4" rear brakes.
1968/72 F100 4WD's have 11" x 2" front brakes, 11" x 2 1/4" rear brakes.
1968/72 F100 2WD's have 11" x 3" front brakes, 11" x 2 1/4" rear brakes.
1968/72 F100 4WD's have 11" x 2" front brakes, 11" x 2 1/4" rear brakes.
FTE Legend
Joined: Nov 2015
Posts: 30,912
Likes: 4,123
From: Angier, NC
I looked up on line and got the same sizes but it did not list for 4x2 or 4x4 and he did not say what he had.
But I did see they listed the 3" shoes so he has something going on he needs to fix.
Dave ----
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
See edited post #3.
FTE Legend
Joined: Nov 2015
Posts: 30,912
Likes: 4,123
From: Angier, NC
At the time I did not know 4x4 had the smaller shoe and the poster nor on line store listed it as 4x2 or 4x4.
He is going to have to pull the drums and check over the install and most likely have to have the drums turned to clear the shoes.
Dave ----
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
I did see your post after the fact of me looking if a 3" shoe was even a option.
At the time I did not know 4x4 had the smaller shoe and the poster nor on line store listed it as 4x2 or 4x4.
He is going to have to pull the drums and check over the install and most likely have to have the drums turned to clear the shoes.
Dave ----
At the time I did not know 4x4 had the smaller shoe and the poster nor on line store listed it as 4x2 or 4x4.
He is going to have to pull the drums and check over the install and most likely have to have the drums turned to clear the shoes.
Dave ----
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Cross-Country
Joined: Jun 2002
Posts: 77
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From: Tucson
As the 2nd Owner of this truck, I found the shoes had cracked linings so I had the drums turned and used new shoes made by Bosch. I've got a set of Wagner shoes coming along with all new hold down and retraction springs. Keeping my fingers crossed.
Thanks for your suggestions and info.
Thanks for your suggestions and info.
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Thread Starter
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Cross-Country
Joined: Jun 2002
Posts: 77
Likes: 13
From: Tucson
I did both sides at the same time using the same brand of shoes but I'm only getting the squeal on the driver's side.
I will be replacing both sides and using identical brand parts in order to keep the sides equal to the other one.
Still keeping my fingers crossed that I'm working thru this problem methodically.
I will be replacing both sides and using identical brand parts in order to keep the sides equal to the other one.
Still keeping my fingers crossed that I'm working thru this problem methodically.
FTE Legend
Joined: Nov 2015
Posts: 30,912
Likes: 4,123
From: Angier, NC
Shoe to wide for the drum?
What are the options for the front shoes for your truck was a 3" even an option?
That 3" look too wide for a F100, I think something like 2.5 wide
I take it they are new did you do the job or someone else?
If you and still have the old shoes measure across them to see what they are.
Dave ----
EDIT
I just looked up brakes for your truck with a 300 six and it dose list a 11 x 3 and a 11 x 2 for the front.
The rear has listed 11 x 2.31 so guessing a 11 x 2.25
So if your truck came with 3" shoes then the drum may need to be turned to have the drum clear the edge of the shoes.
What are the options for the front shoes for your truck was a 3" even an option?
That 3" look too wide for a F100, I think something like 2.5 wide
I take it they are new did you do the job or someone else?
If you and still have the old shoes measure across them to see what they are.
Dave ----
EDIT
I just looked up brakes for your truck with a 300 six and it dose list a 11 x 3 and a 11 x 2 for the front.
The rear has listed 11 x 2.31 so guessing a 11 x 2.25
So if your truck came with 3" shoes then the drum may need to be turned to have the drum clear the edge of the shoes.
As the 2nd Owner of this truck, I found the shoes had cracked linings so I had the drums turned and used new shoes made by Bosch. I've got a set of Wagner shoes coming along with all new hold down and retraction springs. Keeping my fingers crossed.
Thanks for your suggestions and info.
Thanks for your suggestions and info.
Dave ----
Thread Starter
|
Cross-Country
Joined: Jun 2002
Posts: 77
Likes: 13
From: Tucson
I finished cutting off the excess width of the backing plate on a 4 shoes for the front end and also found that the squealing brake drum was not machined the same distance as the passenger side by .029". Should work fine and be quiet as far as squealing is concerned.Thanks for everybody's thoughts on this problem.
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