Ford 9 inch drum brakes 11"x2"

Hello I'm trying to find some brake parts for my 9 inch ford, as I stated in the title they are 11"x2" and have the small ford bearing. I now have chevy bolt pattern axles also. I have NO idea what this housing is out of but it has a smooth back and a fill plug and drain plug.

So I need to come up with new shoe's,spring kit, wheel cylinders and drums that fit 5x4.75BP. I've been searching all over and cannot come up with anything other than drums for 4.5BP on MAC'S website. I'm starting to try and convince myself to spend 650 bucks on a wilwood brake kit. I really need to spend the money elsewhere though!

 

The housing sounds like a '57-early '60s. Why not spend about $300 and get new Ford replacement 5x4 1/2 axles with the proper bearing spacing for your back plates? Might be cheaper and better than trying to mix GM parts with a Ford housing and bp. JMO

 

Take a set of brake shoes to your local, capable parts store, have the experienced parts person identify your brake shoes by looking in their F.M.S.I. book.
After identifying the brake shoes, it will become known by looking in their numerical listings as to what make, year, model, etc.
Be sure to bring your old set of holdown and return spring parts in as well, for matching up.

 

I had new Strange axles and center section built for this housing. I was planing on using the drum brakes( already have them). I dont think ford replacement axles are gonna do what I wanna do with this thing.

 

If you have the correct Ford backing plates the rest shouldn't be so difficult to find as 40FORDPU says above. For the drums, seems to me your best choice is the correct Ford drums and have them re-drilled for the GM 4 3/4" bolt circle.....done!

If you dont have the correct backing plates for the axle offset you have, complete brake assemblies are available for either of the Ford axle offsets, 2 3/8" or 2 1/2", as I recall.

Ray

 

Your brake parts are going to come from a '70s pickup if they are actually Ford parts. That being the case you will have to have them drilled to match whatever bolt pattern you are running.

There is a chance that you are mistaken on your bilt circle and it is a 5 on 5 like comes on a 1/2 ton for pickup with that size brakes.

 

Ford used 5 on 5.5" circle bolt pattern on pickups, 5 on 5.0" circle bolt pattern on 60s big cars, ranchero, wagons and 5 on 4.50" circle bolt pattern on passenger cars starting 1949 and except for the 60s 5" pattern to now(?).
The 6cyl Falcons, Mustangs, Mavericks, Comets, Zephyrs, Grenadas and other mid-size cars used a 4 on 4.5" circle bolt pattern.

 

Maybe ranchero was what i was thinking of, I looked up a set of brakes or helped a lartino fella find brakes the other night at the local parts house. they were the big brakes, I think the counter guy said truck but he may have been thinking that a ranchero was a truck. He did ask if the wheels were 5 on 5 and the other fella said yes (though his interpreter).

 

Backing plates have FOMOCO on them. Original axles I removed have 5x4.5BP. This is a very narrow rear, I believe it could be from a T-bird from the measurements . I will try and get some part numbers tomorrow.

 

You need to do some research on the axle flange offset (aka brake offset). Go online to Speedway, Currie or some other major rod parts supplier, and look at their diagrams for brake/axle flange offset so you know how to measure yours. That, I believe, is the single most important thing you need to know at this point to zero in on what brake parts you need to finish the job.

Ray

 

I measured mine and I have exactly 2.46" so I guess that would be 2 1/2" offset?

I looked at speedways drum kits and all they make them for is the "big ford" bearing ends.

 

closer to 2.5" than 2.375".........

Ray

 

Originally you said 5 x 4.75, this is where the conjecture came from.

Get shoes and drums for a '79 ranchero. I know they could be had with 11x2s and they did have a 5 on 4.5 bolt pattern. (had one for a while)

 

I removed the 4.5's and had 4.75's built for this housing. Sorry for your confusion.

 

There will be no off the shelf drums for that setup. Just got 11" drums for the ford and have them drilled.

 

ok fellas gotta go to bed. Gotta be in NJ for a 5am appointment.

 

I see speedway has multi patern drum kits but for big bearing ends.

 

As stated above just send them out and have the bolt pattern redrilled in the ford drums, I do it all the time, Moser is probably closer, not to expensive. The amount of variables involved in trying to find a GM drum with the right dish is going to be tough

 

Bring some stuff to the parts store and look at some stuff off the shelf. The big box stores still have 9 inch stuff on the shelf. I had to do some figuring out with the 9 in my 66 f100. Someone put backing plates and drums off a 67-72 rear so the drums where wider.

I wouldnt get brake stuff from speedway, id go to the local parts store and get that thing done in a day. Its all damn near made in mexico or china anyway, even the stuff from speedway.

 

Don't know if they will work, but GM used some 11x2 brakes on a Monte Carlo application in the '70s somewhere. 5 on 4.75 bolt patern.
The center pilot may not be right and the drum depth may not be right.

 

I did some research a few years back & here is what I came up with:
11-1/32" diameter X 2-1/4" brake shoe uses a NAPA Brake Drum 640-1485
" " X 2-1/2" " " " " " " " "
Some vehicles in this catagory also used a NAPA Brake Drum 640-1097

 

Currie has everything you need. I have a '57 small-bearing housing in my '40 coupe. Currie sent me two new axles with 5 x 4.75 bolt pattern, new drums drilled for 5 x 4.75, along with the 11" x 2" backing plates with everything included, hardware-wise. Price for all of it was downright reasonable, too. The Currie folks KNOW this 9" stuff. DD

 

Just looked at curries site. They seem to have alot of brake parts. I will give them a call in the morning.

 

Assuming you have a 57 Ford housing (measure the flange to flange width, 57 - 59 Ford is ~53") the original axle offset is about 2-1/4" and you are going to probably have problems with finding 11" hardware to work with your 2-1/2" offset axles. Currie has a 10"X2-1/2" brake kit for your application, but while they may be out there I'm not aware of anyone currently offering anything 11" for your application.

If you find something please post it!

 

Oh yea, if you do end up replacing your whole drum assembly, the old drums and backing plates are probably worth something to someone trying to upgrade their 57 - 59 Ford from 1-3/4" to 2" brakes.

 

Johns 9 inch ... Has got every thing you need for a 9 inch ford rear end ... 1-800-332-3450

 

Just talked to currie, they told me they didnt have anything to help me other than the 10x2.5 kit, it's 450 bucks! Basically what NMcarnut said. I'm gonna call Johns 9inch and see what he has. Thanks guys.

 

Ok just talked to John's 9 inch. They said the same as currie but there 10 inch kit is 70 bucks cheaper. I'm not sure what to do now. The disc's are starting to get tempting.

 

You might check out '66--'69 Bronco ,11" x 2" with small bearing axles (they came both ways) . They are 5x 5.5" stock and have them re-drilled to 4.75". I tried to find a GM drum that would work without the pattern change but the kid running the 'puter at the parts store couldn't be much help.

 

I think I'm just gonna wait till I get my income tax back and go with the disc's. Afterall I think its a good idea to go overkill on brakes.