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Technical F2 brakes on 36 rearend

Discussion in 'Traditional Hot Rods' started by 31modelo, Sep 23, 2015.

  1. 31modelo
    Joined: Apr 9, 2006
    Posts: 1,141

    31modelo
    Member

    I am starting the ch***is for my 32 sedan and am using a 36 rear. I have an extra set of F2 backing plates and Buick drums. So the question is: what will be required to make this happen? or is it a no go.

    I tried a couple of searches and didn't find anything
     
  2. Andy
    Joined: Nov 17, 2002
    Posts: 5,389

    Andy
    Member

    Very difficult. The F2 backing plates have a shallower backspace than the Ford or Lincoln units. This pushes them out toward the drums. You need to use the 46-46 hubs so the wheel mounting surface is outside the drum. This pushes the drum too far inboard to work with the F2 plates. If you try to put the hubs inside the drums, you find you have to cut them down so much the wheel is not supported if you want to use the early Ford wheels. You can go to a small wheel pattern or add a plate on the drum face to mount the wheel. You have to measure and see how everything fits together.
     
  3. titus
    Joined: Dec 6, 2003
    Posts: 5,195

    titus
    Member

    Buick drums in the rear?
     
  4. von Dyck
    Joined: Apr 12, 2007
    Posts: 678

    von Dyck
    Member

    Post #3: Why not? I run Buick fins front and rear with adjustable proportioning to the rear.
     
  5. von Dyck
    Joined: Apr 12, 2007
    Posts: 678

    von Dyck
    Member

    31modelo: Weiand valve covers for the Nailhead seem to be scarcer than '37 Ford tubular front axles!
    Just sayin'.
     
  6. titus
    Joined: Dec 6, 2003
    Posts: 5,195

    titus
    Member

    Yep, i didnt word it the best but it was a sugestion to run buick drums, then you can use the f2 plates. but dunno why you think you would need a proportioning valve to the rear as running 4 f2 brake set ups is just like running 4 40 ford brake set ups.

    You just need rear hubs that had the inside mounted drums, basically just like doing the front set up.
     
  7. von Dyck
    Joined: Apr 12, 2007
    Posts: 678

    von Dyck
    Member

    Running '40 Ford on Buicks in the front plus narrower tires which helps balance the lower efficiency of the early Ford design. The adjustable proportioning valve is there to fine tune front/rear bias. BTW, the rear backing plates are Buick rears redrilled to fit Ford F-100 axle bearing ends. Drums drilled to fit 5 on 5 1/2 bolt circle, drums on outboard side of axle flange. '67 Mustang master cylinder.
    I realize his rear set-up is different. I'm running a Champ QC with Dana 60 axles. This may help someone else.
     
  8. Fordgasser1
    Joined: Jan 20, 2009
    Posts: 1,330

    Fordgasser1
    Member
    from Jersey

    I have F2 brakes w/Buick drums on front and rear of my 33 coupe..Easy install..Backing plates center hole needs to be opened up slightly then bolt right on.Small centering ring is needed to center drum on hub(cost me 30.00 from my machinist)..Redrill the drums for ford BP..I reused the buick studs in my Ford hubs by opening up the holes slightly and pressing them in the hub..The buick studs are 1/2" thread(same as ford) and longer overall with a longer shoulder to p*** through the thicker drum. I had to grind down the lip on the backing plate slightly for clearance at the drum..I'm even using an F2 wheels cylinders (cheaper than f100) and F2 Master cylinder and its stops great..I was told the pressure required at the pedal would be great due to the larger MC but it was not the case at all..I kept the stock pedal ratio and it has proved to be very good..Check mild for 33 coupe build for pics and info or pm me. 1933 parts 050.JPG 1933 parts 048.JPG oldfrord 022.JPG
     

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