65 front drum brakes - need help.
Thread Starter
|
Freshman User
Joined: Nov 2006
Posts: 48
Likes: 0
65 front drum brakes - need help.
Hi everyone,
I could use some clarification on which wheel cylinder should be used on my front brakes. It's a late year 65 2wd F100 SWB. The shoes measure 11" OD and 2" wide.
The wheel cylinder that came off of it has a 7/8 bore.
The NPD catalog says 7/8" bore. They sent me the parts in a correctly labeled box yet the new wheel cylinder inside measures 5/8" bore.
What's really got me confused is the local Napa guy is swearing left and right that the correct wheel cylinder size is 1 1/16" bore.
Can someone please tell me if the 11"x2" is brake is correct for my truck and what size wheel cylinder should I should have ?
thanks.
I could use some clarification on which wheel cylinder should be used on my front brakes. It's a late year 65 2wd F100 SWB. The shoes measure 11" OD and 2" wide.
The wheel cylinder that came off of it has a 7/8 bore.
The NPD catalog says 7/8" bore. They sent me the parts in a correctly labeled box yet the new wheel cylinder inside measures 5/8" bore.
What's really got me confused is the local Napa guy is swearing left and right that the correct wheel cylinder size is 1 1/16" bore.
Can someone please tell me if the 11"x2" is brake is correct for my truck and what size wheel cylinder should I should have ?
thanks.
Thread Starter
|
Freshman User
Joined: Nov 2006
Posts: 48
Likes: 0
Another tid-bit of confusion. The front brakes currently on my truck have auto adjusters - a cable running from the top shoe pivot point down the the star wheel.
I notice that the rear drum from a 73 has a 7/8" cylinder and probably has adjusters. I wonder what I have on this truck ?
I notice that the rear drum from a 73 has a 7/8" cylinder and probably has adjusters. I wonder what I have on this truck ?
Posting Guru
Joined: Jul 2003
Posts: 2,222
Likes: 1
From: East Central Florida
A 73 rear from F-150 has 11"D x 3"W Drum Brake with a 7/8ths Whl Cyl. also has disc brakes on the front, not drums so they have to pick up the stopping power in the rear wheels to compensate & keep in Balance with more efficient stopping power of front disc brake system. The operative word in there is BALANCE
I believe your 11"D X2"W take 7/8ths because they are Front Brakes. Front brakes do 65%-70% of the stopping. Your rear shoes are probably about same width if it's got an OEM 66 rear Axle Assy.
If you had 2.50" or 3.0" inch shoes or a front disc brake conversion, you would req' a larger wheel cyl., but 65-66 F-100 don't come with those big drum brake set ups. They are 2" at best.
FBp
I believe your 11"D X2"W take 7/8ths because they are Front Brakes. Front brakes do 65%-70% of the stopping. Your rear shoes are probably about same width if it's got an OEM 66 rear Axle Assy.
If you had 2.50" or 3.0" inch shoes or a front disc brake conversion, you would req' a larger wheel cyl., but 65-66 F-100 don't come with those big drum brake set ups. They are 2" at best.
FBp
Cargo Master
Joined: Jul 2006
Posts: 3,014
Likes: 91
From: Concord, CA
It is 1 1/16 as the NAPA guy said. Trust me as I just finished a 2 month complete brake job on my '65. The rears are 7/8 also. When looking for cylinders I had a hard time finding ones that wouldn't leak. The first two manufacturers leaked out of the brake line orifice. However, the cylinders by Wagner matched the ones that came out exactly and didn't leak a drop of fluid.
Thread Starter
|
Freshman User
Joined: Nov 2006
Posts: 48
Likes: 0
Thanks guys.
Mike - can you confirm that the shoes are 11" by 2" ? I'm a little worried the entire brake is wrong, not just the cylinder. Does yours have auto adjusters on the front ? Mine does and I didn't think they were out yet in 65.
It would be nice if I can just put in the right cylinders and leave the rest of the set up alone. Remember, it originally had 7/8" cylinders.
John.
Mike - can you confirm that the shoes are 11" by 2" ? I'm a little worried the entire brake is wrong, not just the cylinder. Does yours have auto adjusters on the front ? Mine does and I didn't think they were out yet in 65.
It would be nice if I can just put in the right cylinders and leave the rest of the set up alone. Remember, it originally had 7/8" cylinders.
John.
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
2001/2061/2062 1965/66 F100 4x2
Originally Posted by clancassidy
Thanks guys.
Mike - can you confirm that the shoes are 11" by 2" ? I'm a little worried the entire brake is wrong, not just the cylinder. Does yours have auto adjusters on the front ? Mine does and I didn't think they were out yet in 65.
It would be nice if I can just put in the right cylinders and leave the rest of the set up alone. Remember, it originally had 7/8" cylinders.
John.
Mike - can you confirm that the shoes are 11" by 2" ? I'm a little worried the entire brake is wrong, not just the cylinder. Does yours have auto adjusters on the front ? Mine does and I didn't think they were out yet in 65.
It would be nice if I can just put in the right cylinders and leave the rest of the set up alone. Remember, it originally had 7/8" cylinders.
John.
The front cylinders are 1 1/16 for 4 X 2's; ....(1 1/8 for 4 X 4's)
Front brake Shoes: 11 X 2
source: 1964/72 Ford truck parts catalog, (front brakes: section 20.1 .. parts list #2).
----------------------------------------------------------------
Rear brakes are 11 X 1 3/4, the wheel cylinders are 7/8. (rear brakes: section 22.1, parts list #2)
Last edited by NumberDummy; Jan 27, 2007 at 08:49 PM.
Cargo Master
Joined: Jul 2006
Posts: 3,014
Likes: 91
From: Concord, CA
Was busy on the ship all day but you got your answer as that is exactly what was on my truck after subtracting the missing/broken parts inside the drums. Found a '66 hub on Wednesday to match up with my other one so I can now put the drums on as separate pieces rather than as one integral assembly. Sure helps to have a 50 ton press down at the ship for these things. Now I have two spare '65 hubs and drums with all new bearings to store away.
Trending Topics
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 785
From: Simi Valley, CA
You serving in the USN, or restoring some type of ship?
My dad was in charge of de-commissioning CV12 for the first time in Bremerton 1946. Last de-commissioning was in 1980, I believe.
My dad was in charge of de-commissioning CV12 for the first time in Bremerton 1946. Last de-commissioning was in 1980, I believe.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Cargo Master
Joined: Jul 2006
Posts: 3,014
Likes: 91
From: Concord, CA
Originally Posted by NumberDummy
You serving in the USN, or restoring some type of ship?
My dad was in charge of de-commissioning CV12 for the first time in Bremerton 1946. Last de-commissioning was in 1980, I believe.
My dad was in charge of de-commissioning CV12 for the first time in Bremerton 1946. Last de-commissioning was in 1980, I believe.
Thread
Thread Starter
Forum
Replies
Last Post
kd123
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
1
Jan 6, 2006 05:48 PM
