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Technical Rear tire clearance 1931 Ford Tudor

Discussion in 'Traditional Hot Rods' started by 41blueoval, Jul 25, 2023.

  1. 41blueoval
    Joined: Dec 4, 2009
    Posts: 38

    41blueoval
    Member

    I have a stock 1931 Ford Tudor, I’m looking to lower it and add wider rear tires to fit in the stock rear fenders. Right now I have the stock 19 inch wheels and tire size as well as stock height. Looking inside the rear inner wheel well I can see sometime in the past the tires have contacted the inner panel in the area the panel protrudes outward that allows the rear side windows to roll all the way down. So lowering the car with wider tires will increase rubbing in there. So my question, what has traditionally been done to gain clearance for lowering and larger tires? Or is tire rubs just the way it is?
     
  2. Tim
    Joined: Mar 2, 2001
    Posts: 20,251

    Tim
    Member
    from KCMO

    I’ve got 750-16’s on 35 ford wires and a stock rear axle. Doesn’t seem to touch anywhere.

    I’d go looking for things that are giving more body sway, busted shocks thst could be causing contact
     
    Just Gary likes this.
  3. Glenn Thoreson
    Joined: Aug 13, 2010
    Posts: 1,017

    Glenn Thoreson
    Member
    from SW Wyoming

    My '29 has 8" wide wheels with 235X15 radial tires. No problems inside but stick out an inch or so outside. Stock height with plenty of room. Wheel back set is going to be the key to what you want to do. About 3 1/2" back set would probably be the best. I think 6 to 7 inch wide wheels would be the best. Your mileage may vary.
     
  4. 41blueoval
    Joined: Dec 4, 2009
    Posts: 38

    41blueoval
    Member

    Do 35 wire wheels have a different centerline offset compared to a 19 inch a wheel?
     
  5. Glenn Thoreson
    Joined: Aug 13, 2010
    Posts: 1,017

    Glenn Thoreson
    Member
    from SW Wyoming

    I don't think so, but not absolutely sure. If there is any difference, it shouldn't matter. I have used '35 wheels on a Model A and noticed no difference. If you convert to '40 style hydraulic brakes, you will need to get the spacers to go between the rim and hub. Without them you risk having cracked rims.
    They are readily available from Model A parts vendors. They're just a thin steel disc that takes up the space between wheel and hub and fits the Model A and '32 -' 35 center hole profile. They also allow the use of Model A wheels on the '40 style drums without problems.
     
  6. Tim
    Joined: Mar 2, 2001
    Posts: 20,251

    Tim
    Member
    from KCMO

    35 wheels are 4” wide with a 2” offset/ backspace to the best of my knowledge
     

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