Technical Ford brakes Buick drums

32partsguy has just listed his stainless anchor pins in the for sale section.

 

@Rich B. I wasn't the stainless guy. Made mine out of 4140 but I do have a cad file. For some reason I am unable to upload the F-2 anchor pin dxf file here. If anyone wants it just click on the txt file below to open and save it to your computer, then right click the file to rename, and change the file extention to dxf. You can then open it with any cad software you like. I don't have any pics of just the finished anchor pin it seems. I know one of my phones died around that time and I lost some stuff. These two pics show the pin I made assembled in the brake. The dxf file is made so you can flat the area that goes thru the slotted hole in the backing plate. I used the special slotted washers off some F1 or 50 Merc front brakes underneath the big nut outside the backing plate.

 

The ones I made are machined to the same functional dimensions as the left hand one in this picture that @RICH B posted. I measured some original F2 front pins and made a second set to convert a set of rear backing plates from fixed to adjustable anchor pin.

 

Interesting stuff, bookmarking this one, as I'll be using f250 and buick on the front on my 40. What are you doing for hubs? I was going to use the 40 ones on the inside of the Buick drums, apparently it all lines up great.

 

Thanks for posting this, I tried renaming, but my laptop still thinks its a txt file, but i just need to figure out how to change the file type.

 

A dxf is really a text file but with a different name. At least on a windows PC I change the file extention back and forth seamlessly. I even do it on my android phone. Try emailing the txt file to your phone and changing the file extention there. My company computer has a firewall that won't let out dxf files since they worry about proprietary stuff. Sometimes I draw personal stuff and send it to myself that way. You'll probably get a warning that the file may become un-usable but it works. Otherwise message me your email and I'll send you the dxf.

 

Hello guy. Thanks to everyone for all the valuable information on these brakes. I believe I have everything close to being correct. I assembled the parts and think the adjuster spring I got from Gotham isn’t correct for the brake shoes I’m running. Here are some pics. Let me know if you think this will work. Thank you.

 

Looks like it should work. Have you pulled it over yet?

Not running grease shields?

 

I will try and stretch it over. Grease shields?

 

Are you referring to the wheel bearings? I’m still trying to find a set of seals and grease dust covers that work with my hubs.

 

Not sure what the application might have been & yours may differ but be sure the hex bolt heads clear the hub inner bearing casting, as I recall I had to swap the hex bolts for the regular Ford original shallow square head bolts.

 

Does the star wheel adjuster line up with the adjuster slot in the backing plate?

 

Adjuster spring looks right. Maybe get a clear straight on shot of the assy; that yellow spring doesn't look like it's stretched out, at least it is hard to see any gaps in the coils in the fuzzy picture.

 

Y

Yes it does line up with the opening.

 

Thanks Rich. The yellow spring had to be stretched and walked on with the spring tool.

 

Its easy to add all the self adjusting parts...and they make your life better

 

Everyone has been very helpful. Another quick question??? Can anyone identify this hub? I’m looking for the seal and grease cap and I haven’t had any luck. If my measurements are correct the rear hub seal should be 2.745 and the shaft diameter where the inner lip of the wheel seal is 1.575. The bore for the grease dust cover is 1.930. Could these be early ford hubs machined to work with the Buick drums?

 

Why complicate things, by mix and match Ford backing plates and Buick drums?

Simply modify the Buick backing plates for the Ford spindles like the stock car guy did going back to the early 60s.

Turn it on a lathe to in large the center hole and drill four new mounting holes.

 

Thanks Robert for your input. I wasn’t trying to complicate anything, only trying to finish what someone started decades ago. I’m sure it will all be worth it when I’m finished.

 

A check should be made to see if the drums fully cover the shoes. Often the shoes are only half covered with these conversions.

 

That does not look like a 40 or 48 Ford passenger hub. Maybe it’s an F-1 or F-100? Must be old Ford, or pickup, though with that 5.5” bolt pattern.

 

36541 is a F-100 hub. Usually a 473441 seal is used when on an early Ford spindle, EXCEPT the seal shoulder on a Ford spindle is 1.562".

Is there a sleeve of some sort on your spindle increasing it to 1.575"? Almost looks that way in your picture with the caliper on the shoulder.

Not that there may not be such a seal somewhere; but I didn't see a seal listing that fit a 1.575" shaft with a 2.754" OD in the National seal catalog.

 

Thanks for the info Rich. I will have to check to see if there is a sleeve on the shaft. I have searched everywhere looking to find a seal that matches theses measurements. At least I know what hub I’m working with. Now I need to find some chrome grease caps for the F1 hubs.

 

Rich said F-100, not F-1. Make sure you pay attention to the details. They are not the same.

 

Thank you.

 

Unless you manage to find some NOS Cal Custom chrome caps; you will have to have a pair of repop caps plated.

If you do, use a piece of plastic pipe to install them, as the repop caps are thin and bend if tapped in like normal.

 

I have a set of chrome ones that measure just over 2 inches. I'm thinking about putting the hub in the lathe and open it up to accept the bigger dust shield. Just a thought.... I have to check and see if there is enough metal to do it.

 

A lot to learn here.

 

After taking a few measurements and looking at the 2.085 cap I decided to scrap the idea of opening up the end of the hub to make that size fit. There is enough metal to do it , but I don’t like the look of that big cap. I am going to make a bushing that will bottom on the outside edge of the outer bearing race. I found a brake caliper piston from an old Harley Shovelhead that is the same outer diameter as the wheel hub. This should work well as a bushing once I turn it down on the lathe. The chrome dust caps are a must for the wheels I’m running and it’s the look I’m going for. Hopefully I can make it work. I will take pics and measurements if I’m successful.

 

Got the bushings made today and everything works well. I will post pics with the measurements of the bushings if anyone else is having an issue finding dust caps for 48-52 hubs. I used the Speedway chrome dust shields that measure 1.786.