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Wheel Back Space
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dels56
Posted 2023-06-29 12:18 PM (#630495)
Subject: Wheel Back Space


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Has anyone ever actually measured the Backspace and Offset of your OE style Steel Wheels?
I have a wobbly wheel which I never noticed as it ended being the spare. How that happened was a fluke as I have had all wheels off at one time, dismounted tires and painted wheels. I took the spare in the other day to have the balance checked and this is when the wobble showed up. I can get it straightened but then I am without a spare for the time it is away. I have looked online to see if there is a wheel out there and find m=nothing. My car, 1956 Dodge Custom Royal with the OE steel wheels. 56D500boy (Dave) suggested I look to a bone yard for a early Mustang wheel. This will be my quest this aft or tomorrow. Here is a picture of what my wheel measures. Disregard the fact that the picture is of an alloy wheel but the measurements are actual measurements for my wheel.
Del





(IMG_8145 1.jpg)



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56D500boy
Posted 2023-06-29 1:06 PM (#630500 - in reply to #630495)
Subject: RE: Wheel Back Space



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.
Del: I only suggested early Mustang because there is a fellow in my neighbourhood who has Mustangs (including a clone of the 67 GT "Bullitt" camera car) and in talking to him, I learned that Ford
(and therefore Mustangs) used the same 5 x 4.5" bolt circle as the mid-50's Mopars (like my 56 Dodge).

Not sure about the center hub hole size but the bolt circle would be right.

If you go to a bone yard near you, don't rule out non-Mustang Fords because they might work for what you need.

Here is a smaller version of your diagram (only 1024 pixels wide)



Edited by 56D500boy 2023-06-29 1:08 PM
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Shep
Posted 2023-06-29 2:17 PM (#630503 - in reply to #630500)
Subject: Re: Wheel Back Space



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The center hub mounting hole is important so as not to wind up with lug "centric" wheels.
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Powerflite
Posted 2023-06-29 3:36 PM (#630504 - in reply to #630495)
Subject: Re: Wheel Back Space



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I have spare 15x5" wheels from my '56 Plymouths. What does the center of your wheel look like? The Plymouth wheel has the later style nubs to mount the 10" dog dish caps. If you aren't running original Dodge dog dish caps, and want to just run full wheel covers, these would work. But shipping will likely be expensive.
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dels56
Posted 2023-06-29 4:34 PM (#630505 - in reply to #630495)
Subject: Re: Wheel Back Space


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Plymouth wheels and Canadian Dodge had the NUBS to retain the hub caps different from U.S. built. My car is a Detroit built and has the studs in the hubs and a nut to retain the wheel,
I was just in at our local Lordco (auto parts store) and the manager there has a 1964 & 1/2 Mustang. He is going to give me one of his wheel to look at and measure up.

Thanks for the offer Powerflite but the shipping would be more than the hundred buck to get mine straightened. I am hoping to find one near me.

Dave, I was too lazy to scan and size so I just took a photo and resized and that is what I got. Stupid Window 11 screwed up the resizing feature.

Del
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56D500boy
Posted 2023-06-29 6:06 PM (#630507 - in reply to #630503)
Subject: Re: Wheel Back Space



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Shep - 2023-06-29 11:17 AM
The center hub mounting hole is important so as not to wind up with lug "centric" wheels.


Good point. I just checked the hub and stock wheels on my 56 Dodge D500 with 56 Windsor brakes and wheels and they (the hub and the wheel opening) are both 2.75", like Dels 56 Dodge wheels.

I don't know what the opening would be on a 4.5" x 5 bolt circle older Ford wheel so that idea my have to be trash-canned.

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Shep
Posted 2023-06-29 7:22 PM (#630509 - in reply to #630507)
Subject: Re: Wheel Back Space



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I have found that some Ford wheels are smaller, careful here.
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58coupe
Posted 2023-07-01 12:19 PM (#630523 - in reply to #630495)
Subject: Re: Wheel Back Space



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None of the ford wheels will have the extra holes for the stud. Also they will be 14" and the early mustang 6 cyl. cars used 4 hole wheels. Actually 5x4.5 is very common, used by American Motors and others but the offset and width may be different.
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Powerflite
Posted 2023-07-01 4:55 PM (#630527 - in reply to #630495)
Subject: Re: Wheel Back Space



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Any idea which application used these keyhole slots? These are 15 x 5.5" with 5 x 4.5" bolt circle.The center hole is the same diameter as my other mopar wheels.

By the way, Del, you bore center shouldn't be 2.75". It should be around 2.83".

Edited by Powerflite 2023-07-01 5:09 PM




(15x5.5 Rims.jpg)



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58coupe
Posted 2023-07-02 11:31 AM (#630554 - in reply to #630495)
Subject: Re: Wheel Back Space



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It might be an earlier wheel and the small holes were used for the rivet on clips to hold the small hubcaps on.
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Powerflite
Posted 2023-07-02 12:52 PM (#630557 - in reply to #630495)
Subject: Re: Wheel Back Space



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That makes sense, so it might be for a '55-'56 Dodge?
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Shep
Posted 2023-07-02 2:27 PM (#630560 - in reply to #630557)
Subject: Re: Wheel Back Space



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Location: Chestertown, NY ( near Lake George)
Or for the alignment stud on the drum, because of the type of lug nuts used.
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dels56
Posted 2023-07-02 5:00 PM (#630567 - in reply to #630495)
Subject: Re: Wheel Back Space


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Thanks fellows. I used a caliper to measure the center hole this time not a tape measure. Photo 1...
Wheel mounting Studs, Photo 2...




(IMG_8146 1024.jpg)



(IMG_7707 1024.jpg)



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Attachments IMG_8146 1024.jpg (154KB - 57 downloads)
Attachments IMG_7707 1024.jpg (78KB - 57 downloads)
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