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Technical Rim Offset’s ?

Discussion in 'Traditional Hot Rods' started by mark hogan, Apr 4, 2024.

  1. mark hogan
    Joined: Jul 27, 2022
    Posts: 157

    mark hogan
    Member

    Was wondering on a traditional build running full fenders. Lincoln brake drums and 5” front drop & 2” rear drop. What offsets really work well? Was thinking 16x7 - 2-1/2 O.S rear & 16x4 1-1/2 O.S front using 35 wire set up all around? Any pro’s or con’s would help before purchase would help. Thanks. Hogan IMG_4591.jpeg
     
    Last edited: Apr 8, 2024
  2. ‘28 RPU
    Joined: Feb 11, 2022
    Posts: 337

    ‘28 RPU

    I’m interested in the exact same question and does anybody know the offset of the ‘35 wheels?
     
  3. alchemy
    Joined: Sep 27, 2002
    Posts: 22,783

    alchemy
    Member

    16x8?! Way too wide.

    I think it seems to work best on old Ford derived suspensions to use centered wheels.
     
  4. mark hogan
    Joined: Jul 27, 2022
    Posts: 157

    mark hogan
    Member

     
  5. mark hogan
    Joined: Jul 27, 2022
    Posts: 157

    mark hogan
    Member

    Thinking 1-1/2 O.S. Off the top guess.
     
  6. chickenridgerods
    Joined: Jul 22, 2003
    Posts: 1,557

    chickenridgerods
    Member
    from DSM, IA

    Are you trying to build a 1970s styled car or something from another era?

    The '35 style wires are not 8" wide. Are you planning on cutting them out of their original rims and welding them into new ones?

    None of the changes you've made warrant 8" wide wheels. They don't really "push the envelope"; they're pretty tame and common, TBH.
     
    mark hogan likes this.
  7. mark hogan
    Joined: Jul 27, 2022
    Posts: 157

    mark hogan
    Member

     
    Last edited: Apr 7, 2024
  8. miker98038
    Joined: Jan 24, 2011
    Posts: 1,600

    miker98038
    ALLIANCE MEMBER

    That looks damn good the way it is. I’d just finished it and get on the road. Or have Anthony drop by, I’ll bet he’d drive it.
     
  9. krylon32
    Joined: Jan 29, 2006
    Posts: 10,919

    krylon32
    ALLIANCE MEMBER
    from Nebraska

    I've done a couple sets if early for customer cars both used stock 35 wires on the front with 500/16 Excelsiors and on the rear 18 inch 32 wires widened about 2 inches on the inside with 700/18 Excelsiors. Makes a great combination on a highboy or full fendered early Ford,
     
    38Chevy454 and mark hogan like this.
  10. mark hogan
    Joined: Jul 27, 2022
    Posts: 157

    mark hogan
    Member

    Thanks, I’ve seen this set up. 18” on rear and 17” up front. Rims were out of Wheelsmith. Thank you for the input. Never thought of the Excelsiors brand tire. Could be an option.
     
  11. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,561

    gimpyshotrods
    ALLIANCE MEMBER

    Be careful not to interchange offset and backspacing.

    The former is how far, plus or minus, the wheel mounting surface deviates from the center line of the wheel.

    The latter is how far the wheel mounting surface is from the inner lip of the wheel.

    A 16" x 4" wheel with 4-1/2" of offset would look like a front wheel on a dually truck, with the wheel mounting surface 2-1/2" past the OUTER lip of the wheel

    A typical 16" x 4" is centered, as in 0" offset, or 2" backspacing.

    For another example, a 15" x 10" -1.5" offset, or 3-1/2" backspacing.
     
  12. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,561

    gimpyshotrods
    ALLIANCE MEMBER

    16" x 4", 2" backspacing, 0" offset.

    PXL_20240409_005035111.jpg
     
    mark hogan likes this.
  13. mark hogan
    Joined: Jul 27, 2022
    Posts: 157

    mark hogan
    Member

    Thank you great point. I did goof on my post on front your correct on front at 1-1/2 or zero, rear’s could use 2-1/2 just to keep tire at fender. Seems to be the norm.
     
    Last edited: Apr 8, 2024
    gimpyshotrods likes this.
  14. ALLDONE
    Joined: May 16, 2023
    Posts: 3,979

    ALLDONE
    Member

    thats how I measure back space, wheel company's measure from the top of the lip... not from where the tire mounts... some times that 1/2'' throws the whole wheel off for me...
     
    mark hogan likes this.
  15. twenty8
    Joined: Apr 8, 2021
    Posts: 3,751

    twenty8
    Member

    Backspace should be measured from the inner edge of the wheel lip. If you don't measure it this way you will always get a figure that is at odds with the standardized method used by wheel manufacturers.
     
    ottersea, mark hogan and 57Fury440 like this.
  16. 57Fury440
    Joined: Nov 2, 2020
    Posts: 570

    57Fury440
    Member

    twenty8 is right. If you measure a 5 & 1/2" rim from the outer edges, it will measure 6".
     
    mark hogan likes this.
  17. ottersea
    Joined: Jul 17, 2013
    Posts: 114

    ottersea
    Member

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