F1 brakes

D

dkd35

Member
I have mounted complete f 1 brakes on my round back spindels. Bendix # 301917 .my proplem is the new brake drum wont touch the hub because the backing plate hits the back of the drum. Any one run into this? Dont really want to cut the drum.
 
The hub on the F-1 brakes has a different offset than the '53-56 F-100 brakes. The 53-56 brakes are the ones to use.
 
The backing plate itself is the same 48 to 56. The hub is different (and drum) 48 to 52 and 53 to 56

57 and up backing plate is all together different.
 
dkd35 said:
I have mounted complete f 1 brakes on my round back spindels. Bendix # 301917 .my proplem is the new brake drum wont touch the hub because the backing plate hits the back of the drum. Any one run into this? Dont really want to cut the drum.
Click to expand...

There are some later pickup drums that will work. Did you modify the wheel bearings to fit the spindles?
 
After reading your post again, sounds like you have 53 to 56 hubs and a 48 to 52 drum.

The 53 to 56 drums is almost flat, the real 48 to 52 drum has a offset and a narrow brake shoe surface.

The late model drum you can use on 48 to 52 hubs is also flat but has a wide brake shoe surface about 2-1/2" .
 
'86 F-150 drum works for front on 48-52 F-1's NAPA #ND 4401455 @Rock Auto = Centric 122.65022

I'm not sure that will be the solution here, tho.
 
I have 40 spindles mtcarr husb and us made brake drums from Joe's. The drum wont go all the way on it hits the lip of the F1 backing plate.?
 
Is the backing plate seated completely on the register of the spindle.

How much is it missing by when it hits the backing plate?

Is the inside bearing seated completely on the spindle?

You use to have to grind a radius on the inner bearing when adapting the later hubs to early spindles but I think now there is a bearing available that's has the radius to fit without grinding
 
skidmarks said:
You use to have to grind a radius on the inner bearing when adapting the later hubs to early spindles but I think now there is a bearing available that's has the radius to fit without grinding
Click to expand...

Suppliers like Speedway sell a bearing setup with the radius, but if you use the bearing number normally called out for this installation then the bearing needs to be radiused.

dkd35, are you sure which hubs you have? There is a big difference between the F1 and F100. There is about 7/16 difference between them.
 

Attachments

  • F1.pdf
    F1.pdf
    1.1 MB · Views: 28
  • F-1 Hub.jpg
    F-1 Hub.jpg
    5.5 KB · Views: 38
  • F-100 Hub.jpg
    F-100 Hub.jpg
    5.3 KB · Views: 26
Last edited:
My hubs are new from speedway. I have checked hub is all the way in .2inch shoes 2 inch drum . The 12" bendix backing plate is the same size of the outer drum not letting the drum to go back the 1/2 inch. If the drum was bigger the backing plate lip would fit in the groove and work. So it looks like cutting the lip off or 1/2 of the outer drum?
 
You got F2 / lincoln type brakes. Not like the F1 brake swap from a junkyard

Were did you get the drums?

Also sounds like you got the 40 ford style repop hubs
 
dkd35 said:
I have mounted complete f 1 brakes on my round back spindels. Bendix # 301917 .my proplem is the new brake drum wont touch the hub because the backing plate hits the back of the drum. Any one run into this? Dont really want to cut the drum.
Click to expand...

As previously mentioned Bendix 301917 is a F-2/F-250 12" backing plate.

The offset of your repop Ford hub and drum are not compatible with these backing plates.
 
F1 brakes are 2x11, how did you manage to mount them on a 12 inch backing plate? OK, so are we talking about something like the Speedway Kit "12" Bendix style brakes for 37-48 Ford spindles" 910-65420? As best as I can tell this kit does not use any F1 or F100 parts and is made for the original 37-48 hubs.
 
Last edited:
TJ said:
Anybody have the part number for the speedway bearing?
Click to expand...

MFG. Part #:
91631934
Info
Kit allows you to install 1953-1956 Ford F-100 pickup 11" x 2" drum brakes on your 1937-1948 Ford car spindles. Kit includes new bearings and seals to allow conversion. You must supply 1953-1956 F-100 front backing plates, hubs and 1953-1966 brake drums. Minor grinding required on 1937-1941 spindles.

Notes
Adapts '53-'56 F-100 front brakes to '37-'48 Ford spindles (and aftermarket spindles like our #910-32104). Also adapts '48-'52 F-1 pickup brakes to the same '37-'48 style spindles.
 
...and unless Speedway has changed the inner bearing in it's kit recently; you still need to grind a radius for it to seat properly.
 
rich b said:
...and unless Speedway has changed the inner bearing in it's kit recently; you still need to grind a radius for it to seat properly.
Click to expand...
That I would have no idea about, I have always purchased the required inter bearing from a bearing supply and ground them myself.
 
The F250/F2 backing plates are too shallow where they mount to the spindle. This pushes the plate into the drum. There is no simple solution to use them. People have cobbled together ways to use them with Buick drums. I would not ever run these designs. You can buy old or repo Lincoln plates. Some of the Lincoln’s also are shallow. The rears work fine on the front.
 
You must log in or register to reply here.
Back
Top