Home » Public Forums » GMCnet » Spacers (Spacers)
| Spacers [message #160147] |
Sun, 12 February 2012 21:12  |
Marsha
Messages: 144
Registered: February 2011
Karma: 0
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Senior Member |
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As you all know I was trying to get some spacers/adapters made. My goal here is to be able to use a wheel that is more common. That includes getting away from the real duelly type wheel. Would anyone else be interested in something like this? It's very possible I could get him to make more, but wouldn't bother him if no one else would want such a thing.
Marsha
75 Eleganza
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| Re: Spacers [message #160260 is a reply to message #160147] |
Mon, 13 February 2012 17:16  |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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Senior Member |
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| Marsha wrote on Sun, 12 February 2012 19:12 |
... My goal here is to be able to use a wheel that is more common. That includes getting away from the real duelly type wheel. ...
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Marsha,
Some have already used a non-dually wheel on the front. If it matches the lug circle, lug centered wheels can be used... as long as you use the correct lug nuts. (The lugs have to be matched to BOTH the wheel and lugs.) The non-dually wheels already move the tires outboard -- no spacers required.
The down side is the different spare "needed" for the front and rear and a slightly different "look" on the front and rear wheels. (Not an issue to some GMC'ers...)
But the rear is a problem. Due to the design of the rear suspension and offset of the original wheel, any non-dually wheel will put the tire well beyond the body. While there ARE modifications for this... it is not something most GMC'ers would want to do.
<http://www.gmcmhphotos.com/photos/showphoto.php?photo=41287>
IMHO: I think the easiest way to use a "more common wheel" on the GMC would be to make centering rings that could be fastened to the hub, semi-permanently, that would allow the use of Dodge/Ford DUALLY rims... with the same bolt circle. You would still need to be mindful of the wheel to brake clearance... both front and rear.
Granted, these "centering rings" COULD be built into a set of spacers for the front.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] Spacers [message #160290 is a reply to message #160255] |
Mon, 13 February 2012 22:05 |
Marsha
Messages: 144
Registered: February 2011
Karma: 0
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Senior Member |
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I think I follow you. Although there are a lot of numbers here and I do much better with vague, out of focus ideas. :-)
I've got a lot of things going on in a very small space, correct? So far, the OCD machinist thinks it can be done. We will see. I'm thinking it may end up being more of a centering ring. But only time will tell.
Marsha
--- On Mon, 2/13/12, Rob Mueller <robmueller@iinet.net.au> wrote:
From: Rob Mueller <robmueller@iinet.net.au>
Subject: Re: [GMCnet] Spacers
To: gmclist@temp.gmcnet.org
Date: Monday, February 13, 2012, 4:16 PM
Marsha,
Please don't take this the wrong way, I laude your efforts and I may be all
wet with what I note below but . . .
The spacer will have to have a bolt circle of 8 holes at 6.5 inches that
will allow the 9/16" studs to fit through them. You will also need to
machine a recess that is 4.567 inches OD for the hub centering boss.
You will then have to machine a bolt circle that fits the new wheel and
install studs. I would think you need 9/16 studs but I don't know how much
you can adjust the bolt circle that will fit the new wheels and have it fit
in between the OEM bolt circle.
I hope this information is clear.
Regards,
Rob M.
USAussie - Downunder
-----Original Message-----
From: Marsha
The plan is to make them fit a more common, modern wheel. Either steel or
alloy. My thought was to get it to fit a common truck wheel that you can
pick up anywhere. That way you would have many choices on cost and style.
Marsha75 Elenganza
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| Re: Spacers [message #160331 is a reply to message #160328] |
Tue, 14 February 2012 15:37 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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AH... the fog is lifting.. kinda like a 1/4" behind the wheel spacer with a concentric ring made on it with id of GMC wheel and od of whatever.. bound to work and solve a wheel issue for many owners wanting to stay with the hub centered wheels.
| ahamilto wrote on Tue, 14 February 2012 15:53 |
Marsha is putting together a product that will allow people to use Ford and/or Dodge rims (that have larger hub holes) on the GMC axles, and still be hub centered.
Not trying to change the bolt pattern, not trying to space the front wheels to get them closer to the track of the rear wheels.
What she is working on has only enough "spacer" to make up for a slight difference in offset between most newer dually wheels (about 5") and the GMC OEM wheels (4.567") which also helps caliper clearance, and to provide something to anchor the "sleeve" that "enlarges" the GMC hub. Her purpose is to allow a wider range of rims to be used on the GMC so that we don't keep getting deadended by manufacturers ceasing production on certain rims (Alcoa, for example).
If it is successful, people looking for 16" or 17" steel rims won't have to pass up a correctly shaped rim just because it is hub centered with the wrong size hub hole, or someone looking for alloy wheels could use rims made for Ford duallies and not be restricted to the ones made for a small range of GMC year models. It would open up the range of new alloy rims that our vendors could stock.
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C. Boyd
76 Crestmont
East Tennessee
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| Re: Spacers [message #160369 is a reply to message #160263] |
Tue, 14 February 2012 22:00 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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Senior Member |
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| ahamilto wrote on Mon, 13 February 2012 16:18 |
I thought that is what Marsha is working on. ...
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I hope so...
In the first post she stated: "... That includes getting away from the real duelly type wheel. ..."
I was pointing out that while it would work on the front, a non-dually wheel is problematic for the rear.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] Spacers [message #160386 is a reply to message #160290] |
Wed, 15 February 2012 09:15 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Marsha,
OK, if you don't want to change the bolt circle all you have to do is
contact:
Jim Hupy
1754 82nd Ave SE
Salem, OR 97317
jamesh1296@gmail.com
I'm sure he'd be happy to help your machinist to make a one off set.
As you can see he's already done what you want to do!
http://bdub.net/jhupy/
Regards,
Rob M.
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Marsha
Sent: Monday, February 13, 2012 10:06 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Spacers
I think I follow you. Although there are a lot of numbers here and I do much
better with vague, out of focus ideas. :-)
I've got a lot of things going on in a very small space, correct? So far,
the OCD machinist thinks it can be done. We will see. I'm thinking it may
end up being more of a centering ring. But only time will tell.
Marsha
--- On Mon, 2/13/12, Rob Mueller <robmueller@iinet.net.au> wrote:
From: Rob Mueller <robmueller@iinet.net.au>
Subject: Re: [GMCnet] Spacers
To: gmclist@temp.gmcnet.org
Date: Monday, February 13, 2012, 4:16 PM
Marsha,
Please don't take this the wrong way, I laude your efforts and I may be all
wet with what I note below but . . .
The spacer will have to have a bolt circle of 8 holes at 6.5 inches that
will allow the 9/16" studs to fit through them. You will also need to
machine a recess that is 4.567 inches OD for the hub centering boss.
You will then have to machine a bolt circle that fits the new wheel and
install studs. I would think you need 9/16 studs but I don't know how much
you can adjust the bolt circle that will fit the new wheels and have it fit
in between the OEM bolt circle.
I hope this information is clear.
Regards,
Rob M.
USAussie - Downunder
-----Original Message-----
From: Marsha
The plan is to make them fit a more common, modern wheel. Either steel or
alloy. My thought was to get it to fit a common truck wheel that you can
pick up anywhere. That way you would have many choices on cost and style.
Marsha75 Elenganza
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Spacers [message #160526 is a reply to message #160386] |
Thu, 16 February 2012 10:14 |
Marsha
Messages: 144
Registered: February 2011
Karma: 0
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Senior Member |
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After two very long and expensive days I am back on line. So I apologize that my response time is so slow.
I was not aware that someone else made such a beast. I have no desire cut our suppliers by copying something they make and trying to sell it. My thought was to create something that didn't exist to help us keep these wonderful machines running.
Marsha
--- On Wed, 2/15/12, Rob Mueller <robmueller@iinet.net.au> wrote:
From: Rob Mueller <robmueller@iinet.net.au>
Subject: Re: [GMCnet] Spacers
To: gmclist@temp.gmcnet.org
Date: Wednesday, February 15, 2012, 9:15 AM
Marsha,
OK, if you don't want to change the bolt circle all you have to do is
contact:
Jim Hupy
1754 82nd Ave SE
Salem, OR 97317
jamesh1296@gmail.com
I'm sure he'd be happy to help your machinist to make a one off set.
As you can see he's already done what you want to do!
http://bdub.net/jhupy/
Regards,
Rob M.
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Marsha
Sent: Monday, February 13, 2012 10:06 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Spacers
I think I follow you. Although there are a lot of numbers here and I do much
better with vague, out of focus ideas. :-)
I've got a lot of things going on in a very small space, correct? So far,
the OCD machinist thinks it can be done. We will see. I'm thinking it may
end up being more of a centering ring. But only time will tell.
Marsha
--- On Mon, 2/13/12, Rob Mueller <robmueller@iinet.net.au> wrote:
From: Rob Mueller <robmueller@iinet.net.au>
Subject: Re: [GMCnet] Spacers
To: gmclist@temp.gmcnet.org
Date: Monday, February 13, 2012, 4:16 PM
Marsha,
Please don't take this the wrong way, I laude your efforts and I may be all
wet with what I note below but . . .
The spacer will have to have a bolt circle of 8 holes at 6.5 inches that
will allow the 9/16" studs to fit through them. You will also need to
machine a recess that is 4.567 inches OD for the hub centering boss.
You will then have to machine a bolt circle that fits the new wheel and
install studs. I would think you need 9/16 studs but I don't know how much
you can adjust the bolt circle that will fit the new wheels and have it fit
in between the OEM bolt circle.
I hope this information is clear.
Regards,
Rob M.
USAussie - Downunder
-----Original Message-----
From: Marsha
The plan is to make them fit a more common, modern wheel. Either steel or
alloy. My thought was to get it to fit a common truck wheel that you can
pick up anywhere. That way you would have many choices on cost and style.
Marsha75 Elenganza
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Spacers [message #160568 is a reply to message #160560] |
Thu, 16 February 2012 18:40 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Marsha and Mark, I am the guy who makes the hub extenders. Mark is correct
in the purpose for my hub extenders. I don't think that the 1 ton
conversion will have any problems with centering wheels. I have only seen
Alloy wheels used with the 1 ton, but I am currently installing a 1 ton set
up for a customer, and I will check if the 16" steel wheels will work
also. If they do, no extender is needed. If someone wants to use wheels
that are larger than the 16" size, AND they have the 1 ton front end, then
the spacer that comes with the 1 ton will have to be replaced with one that
bolts to the 1 ton hub, and has the stud pattern of the wheel that you want
to use. I am sure that there is room to use several different stud
patterns. I originally made the hub extenders to allow the use of 80MM
calipers and 16" steel wheels. In that case, there is sometimes
interference between the brake caliper and the inside of the 16" wheel, and
a spacer must be used between the hub and the wheel. That moves the inside
of the wheel out beyond the hub centering flange. Hence the extenders. Yes
I am busy. If you want to build something that does what you want to
accomplish. Please feel free to do so. You won't step on my toes.
Jim Hupy
Salem, OR
78 GMC Royale 403
On Thu, Feb 16, 2012 at 3:58 PM, A. <markbb1@netzero.com> wrote:
>
>
> Marsha wrote on Thu, 16 February 2012 10:14
> > After two very long and expensive days I am back on line. So
> I apologize that my response time is so slow.
> > I was not aware that someone else made such a beast. I have no desire
> cut our suppliers by copying something they make and trying to sell it. My
> thought was to create something that didn't exist to help us keep these
> wonderful machines running.
> > Marsha
> I am of the understanding that there are two things keeping you from
> "undercutting" the supplier. First, the current version only extends the
> existing 4-9/16" hub a bit to compensate for the spacer, it does not
> enlarge the hub to allow a different make rim. Second, the current
> supplier is busier than a one-legged man in a butt-kicking contest, and the
> little bit of profit on these small fabrication runs makes it difficult for
> the product to compete for his time.
> If I am wrong, I hope he lets me know so I will stop trying to encourage
> someone that might cut out his bread and butter.
> --
> '73 23' CanyonLands
> UA (Upper Alabama)
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Spacers [message #160578 is a reply to message #160568] |
Thu, 16 February 2012 19:50 |
A Hamilto
Messages: 4508
Registered: April 2011
Karma: 39
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Senior Member |
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| James Hupy wrote on Thu, 16 February 2012 18:40 |
Marsha and Mark, I am the guy who makes the hub extenders. Mark is correct in the purpose for my hub extenders. I don't think that the 1 ton conversion will have any problems with centering wheels. I have only seen Alloy wheels used with the 1 ton, but I am currently installing a 1 ton set up for a customer, and I will check if the 16" steel wheels will work also. If they do, no extender is needed. If someone wants to use wheels that are larger than the 16" size, AND they have the 1 ton front end, then
the spacer that comes with the 1 ton will have to be replaced with one that bolts to the 1 ton hub, and has the stud pattern of the wheel that you want to use. I am sure that there is room to use several different stud patterns. I originally made the hub extenders to allow the use of 80MM calipers and 16" steel wheels. In that case, there is sometimes interference between the brake caliper and the inside of the 16" wheel, and a spacer must be used between the hub and the wheel. That moves the inside
of the wheel out beyond the hub centering flange. Hence the extenders. Yes I am busy. If you want to build something that does what you want to accomplish. Please feel free to do so. You won't step on my toes.
Jim Hupy
Salem, OR
78 GMC Royale 403
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I think you validated my understanding of the situation/proposed product. We know you could fabricate the widget we have been talking about, because it is so similar to what you already make. But we also know that the market is small, along with your profit margin on such a product. Maybe Marsha's OCD machinist has ways to trim costs that are not available to you. I am looking forward to his estimate to produce a set of 6.
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| Re: [GMCnet] Spacers [message #160602 is a reply to message #160526] |
Thu, 16 February 2012 22:28 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Marsha,
I am pretty sure NO ONE thought you were trying to cut out anybody. To be
quite frank I had a problem understanding what you wanted.
Once I figger'd it out I pointed you to Jim, that's what we all do our best
to do here!
Besides I'm reasonably confident that Jim is not going to retire to a
mansion in the Bahamas from what he makes selling the spacers! ;-)
Regards,
Rob M.
-----Original Message-----
From: Marsha
After two very long and expensive days I am back on line. So
I apologize that my response time is so slow.
I was not aware that someone else made such a beast. I have no desire cut
our suppliers by copying something they make and trying to sell it. My
thought was to create something that didn't exist to help us keep these
wonderful machines running.
Marsha
--- On Wed, 2/15/12, Rob Mueller <robmueller@iinet.net.au> wrote:
From: Rob Mueller <robmueller@iinet.net.au>
Subject: Re: [GMCnet] Spacers
To: gmclist@temp.gmcnet.org
Date: Wednesday, February 15, 2012, 9:15 AM
Marsha,
OK, if you don't want to change the bolt circle all you have to do is
contact:
Jim Hupy
1754 82nd Ave SE
Salem, OR 97317
jamesh1296@gmail.com
I'm sure he'd be happy to help your machinist to make a one off set.
As you can see he's already done what you want to do!
http://bdub.net/jhupy/
Regards,
Rob M.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Spacers [message #160604 is a reply to message #160526] |
Thu, 16 February 2012 22:48 |
A Hamilto
Messages: 4508
Registered: April 2011
Karma: 39
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Senior Member |
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| Rob Mueller wrote on Wed, 15 February 2012 9:15 |
Marsha,
OK, if you don't want to change the bolt circle all you have to do is contact:
Jim Hupy
1754 82nd Ave SE
Salem, OR 97317
jamesh1296@gmail.com
I'm sure he'd be happy to help your machinist to make a one off set.
As you can see he's already done what you want to do!
http://bdub.net/jhupy/
Regards,
Rob M.
|
Only one difference between Jim's widget and Marsha's proposal - hub expansion. Jim's product extends the GMC OEM hub to center the rim, Marsha's will both entend and enlarge it for rims with larger hub holes. Also, Marsha's machinist might have more time to crank out a set, and maybe some aspect of his business will allow him to do it for less.
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