What Alcoa hub bore size on 1985 Dually - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**1774btcrew** · 11-02-2022, 12:22 AM

I just dropped off my Alcoa wheels at the polisher and while I made sure the bolt pattern was correct, I didn't factor in the hub bore. I know it is supposed to be 4.56 but searching Alcoa wheels, I don't see this as a choice. If someone can get me an answer ASAP I would appreciate it as it is going to cost $300 to have them done and they will be done by Friday so I want to catch them in time. Any Help is appreciated

**1774btcrew** · 11-02-2022, 12:24 AM

I only see 4.88 and 4.60 wheel bore options for Alcoa wheels

**kwmech** · 11-02-2022, 07:00 PM

A stock dually steel rim is 4- 9/16'' or 4.562 so the 4.6 should work out just fine as the early stuff was lug centric not hub centric. AND you wouldn't want the aluminum tight against the steel hub anyways (unless you butter it up good with anit-seize) for the corrosion factor

**1774btcrew** · 11-02-2022, 08:36 PM

Quote:

Originally Posted by kwmech

A stock dually steel rim is 4- 9/16'' or 4.562 so the 4.6 should work out just fine as the early stuff was lug centric not hub centric. AND you wouldn't want the aluminum tight against the steel hub anyways (unless you butter it up good with anit-seize) for the corrosion factor

Thank you! That was the answer I was hoping for.

**Desert1957** · 11-03-2022, 03:33 PM

Quote:

Originally Posted by kwmech

A stock dually steel rim is 4- 9/16'' or 4.562 so the 4.6 should work out just fine as the early stuff was lug centric not hub centric. AND you wouldn't want the aluminum tight against the steel hub anyways (unless you butter it up good with anit-seize) for the corrosion factor

You sure? all my Squarebody duallies are hub centric.

**1774btcrew** · 12-14-2022, 01:29 PM

Quote:

Originally Posted by Desert1957

You sure? all my Squarebody duallies are hub centric.

These wheels and I came to just over 4.5 in so it looks like I have the right ones at least

11-02-2022, 12:22 AM	#1
1774btcrew Senior Member Join Date: Jun 2009 Location: Phoenix AZ Posts: 4,544	What Alcoa hub bore size on 1985 Dually I just dropped off my Alcoa wheels at the polisher and while I made sure the bolt pattern was correct, I didn't factor in the hub bore. I know it is supposed to be 4.56 but searching Alcoa wheels, I don't see this as a choice. If someone can get me an answer ASAP I would appreciate it as it is going to cost $300 to have them done and they will be done by Friday so I want to catch them in time. Any Help is appreciated __________________ AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.

11-02-2022, 12:24 AM	#2
1774btcrew Senior Member Join Date: Jun 2009 Location: Phoenix AZ Posts: 4,544	Re: What Alcoa hub bore size on 1985 Dually I only see 4.88 and 4.60 wheel bore options for Alcoa wheels __________________ AZPartsLocators on Instagram 1972 Cheyenne Super Short Bed big block "Blackie" 1977 Crew Cab GMC Short bed with 4BT Intercooled Cummins Diesel and a 4L80e "The Junkyard Dog" 1985 Crew Cab Chevy dually with 5.9 Cummins "The Big Dog" This is what my dad liked to be called by the grandkids before he passed so it seems fitting for his old truck.

11-02-2022, 07:00 PM	#3
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,389	Re: What Alcoa hub bore size on 1985 Dually A stock dually steel rim is 4- 9/16'' or 4.562 so the 4.6 should work out just fine as the early stuff was lug centric not hub centric. AND you wouldn't want the aluminum tight against the steel hub anyways (unless you butter it up good with anit-seize) for the corrosion factor



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