I believe that the concentricity of the rim and the hub is achieved with the fit of the lug nuts in the lug nut holes in the rim. The lug nuts should have a taper angle that matches the angle of the formed, countersunk lug nut holes in the rim. The matching tapers of lug nuts and lug nut holes yields a zero-clearance condition when the lug nuts are tightened. That results in the necessary concentricity between the rim and the hub. I believe that the center hole in the rim and the circular shoulder on the hub are there to allow you to hold the rim in place until you get the lug nuts installed and tightened.

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Originally posted by RB3

I believe that the concentricity of the rim and the hub is achieved with the fit of the lug nuts in the lug nut holes in the rim. The lug nuts should have a taper angle that matches the angle of the formed, countersunk lug nut holes in the rim. The matching tapers of lug nuts and lug nut holes yields a zero-clearance condition when the lug nuts are tightened. That results in the necessary concentricity between the rim and the hub. I believe that the center hole in the rim and the circular shoulder on the hub are there to allow you to hold the rim in place until you get the lug nuts installed and tightened.

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They must have looked at a Stelling.....

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Originally posted by rinemb

1952 Chevy half ton. My rims have a center bore of about 3-1/2” and on the hub there some space from the hub to the rim edge. I finally found another 6 bolt 15” rim I needed but then in noticed the center hole was larger-near 4”. Same bolt hole spacing as my other rims. I am assuming my mountings are “lug-centric” as to importance, not hub centric. Is the new rim going to be ok? Thanks, brad

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Hi Brad,

The lugs pull/jerk the rims true and hub-centric was less of a 'thing' back then.  This is why we cinch all of them first and then torque.

Those old six lug Chev rims can be difficult to source; 4x4 trucks up 'til 1987 and some of the later gen S10/15 used them.  Hubcaps too.  The kicker is that most disc brake conversions are five lug; at least the truck rear axles are more universal than the sedans. Good luck.

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Originally posted by pinenut

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Originally posted by rinemb

1952 Chevy half ton. My rims have a center bore of about 3-1/2” and on the hub there some space from the hub to the rim edge. I finally found another 6 bolt 15” rim I needed but then in noticed the center hole was larger-near 4”. Same bolt hole spacing as my other rims. I am assuming my mountings are “lug-centric” as to importance, not hub centric. Is the new rim going to be ok? Thanks, brad

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Hi Brad,

The lugs pull/jerk the rims true and hub-centric was less of a 'thing' back then.  This is why we cinch all of them first and then torque.

Those old six lug Chev rims can be difficult to source; 4x4 trucks up 'til 1987 and some of the later gen S10/15 used them.  Hubcaps too.  The kicker is that most disc brake conversions are five lug; at least the truck rear axles are more universal than the sedans. Good luck.

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I put in an order of 1952 "Korean War Years" hubcap reproductions (they are gray paint instead of chrome, due to war needs)  unfortunately they are presently not available.

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Originally posted by rinemb

1952 Chevy half ton. My rims have a center bore of about 3-1/2” and on the hub there some space from the hub to the rim edge. I finally found another 6 bolt 15” rim I needed but then in noticed the center hole was larger-near 4”. Same bolt hole spacing as my other rims. I am assuming my mountings are “lug-centric” as to importance, not hub centric. Is the new rim going to be ok? Thanks, brad

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yes

Without a bigger motor I will not be going over 50mph any time soon. My driving of Ol Blue will be limited to in town hauls and errands going tops, 40-45 mph. My tires are brand new.
And to think, back in the 1970s I drove it all over the Midwest. Thanks, brad

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Originally posted by rinemb

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Originally posted by pinenut

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Originally posted by rinemb

1952 Chevy half ton. My rims have a center bore of about 3-1/2” and on the hub there some space from the hub to the rim edge. I finally found another 6 bolt 15” rim I needed but then in noticed the center hole was larger-near 4”. Same bolt hole spacing as my other rims. I am assuming my mountings are “lug-centric” as to importance, not hub centric. Is the new rim going to be ok? Thanks, brad

---

Hi Brad,

The lugs pull/jerk the rims true and hub-centric was less of a 'thing' back then.  This is why we cinch all of them first and then torque.

Those old six lug Chev rims can be difficult to source; 4x4 trucks up 'til 1987 and some of the later gen S10/15 used them.  Hubcaps too.  The kicker is that most disc brake conversions are five lug; at least the truck rear axles are more universal than the sedans. Good luck.

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I put in an order of 1952 "Korean War Years" hubcap reproductions (they are gray paint instead of chrome, due to war needs)  unfortunately they are presently not available.

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found some chrome ones,, but they proud of them

https://scottyshubcaps.com/product/1947-55-chevrolet-stainless-hub-cap-set-of-4-chevy-1-2-ton-truck-47-1130/

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Originally posted by 1935tb-11

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Originally posted by rinemb

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Originally posted by pinenut

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Originally posted by rinemb

1952 Chevy half ton. My rims have a center bore of about 3-1/2” and on the hub there some space from the hub to the rim edge. I finally found another 6 bolt 15” rim I needed but then in noticed the center hole was larger-near 4”. Same bolt hole spacing as my other rims. I am assuming my mountings are “lug-centric” as to importance, not hub centric. Is the new rim going to be ok? Thanks, brad

---

Hi Brad,

The lugs pull/jerk the rims true and hub-centric was less of a 'thing' back then.  This is why we cinch all of them first and then torque.

Those old six lug Chev rims can be difficult to source; 4x4 trucks up 'til 1987 and some of the later gen S10/15 used them.  Hubcaps too.  The kicker is that most disc brake conversions are five lug; at least the truck rear axles are more universal than the sedans. Good luck.

---

I put in an order of 1952 "Korean War Years" hubcap reproductions (they are gray paint instead of chrome, due to war needs)  unfortunately they are presently not available.

---

found some chrome ones,, but they proud of them

https://scottyshubcaps.com/product/1947-55-chevrolet-stainless-hub-cap-set-of-4-chevy-1-2-ton-truck-47-1130/

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Yep, those are pricey.   In other catalogues, the lettered hubcaps in chrome  are 52.00-59.00 each. still pricey, though.  Thx, Brad

Hub fit will ensure a more centered wheel than lug fit. You can get spacers to fill the void in the hub to ensure a better balance.

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Originally posted by 1935tb-11

found some chrome ones,, but they proud of them

https://scottyshubcaps.com/product/1947-55-chevrolet-stainless-hub-cap-set-of-4-chevy-1-2-ton-truck-47-1130/

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That is common pricing for new hubcaps:  https://www.chevsofthe40s.com/detail/6402/Chevrolet_Truck_Hub_Cap

It's also why the 'dog dish' hubcaps and/or satin black spray paint (with shiny nuts) looks fantastic:  https://www.ebay.com/itm/236648381708