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Home » Public Forums » GMCnet » NON-gmc- spindle dimension question (dave's back) (Still working on the Revcon )
NON-gmc- spindle dimension question (dave's back) [message #287074] Fri, 11 September 2015 09:58 Go to next message
hertfordnc is currently offline  hertfordnc   United States
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Location: East NC
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Really, I had given up on the Revcon some time ago. But the bride would like to see it resurrected and projects she supports have better funding.

Back in the late 60's when Scott Hall sketched the Revocn on a napkin he used off the shelf components from many sources (mostly GM)

He converted the chevy 5 lug pattern to a 5 by 8" pattern which was till common on trucks back then.

I'm wondering if i can find some other vehicle that used the same spindle and hub but with an 8 lug wheel.

I've searched a lot of trailer sites looking at spindle dimension with no luck. Spoke to an engineer at Dexter who made it clear she would not help me in any way shape or form (but with a very polite midwest accent)

Any suggestions?

The spindle is 5.25" - 3" section 1.5" dia. 1/8" bevel to 1.25 dia. section 1.25" long followed by 1" of thread.

Grateful for any insight

Sure wish Dan was here to mock me.







Dave & Ellen Silva Hertford, NC 76 Birchaven, 1-ton and other stuff Currently planning the Great american Road Trip Summer 2021 It's gonna take a lot of Adderall to get this thing right.
Re: [GMCnet] NON-gmc- spindle dimension question (dave's back) [message #287076 is a reply to message #287074] Fri, 11 September 2015 11:03 Go to previous messageGo to next message
Dave Mumert   United States
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Registered: February 2004
Location: Olds, AB, Canada
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Senior Member
Hi Dave

Sorry I can't mock you as well as Dan so I won't try, good to hear from you again.

Have you considered using an aluminum spacer/adapter?

The newer GM one ton pickup wheels should have enough offset to make room for the spacers without moving the wheels out.

The used wheels are cheap, spacers not so much as they would need to be custom built.

Dave Mumert


> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of dave silva
> Sent: Friday, September 11, 2015 8:59 AM
> To: gmclist@list.gmcnet.org
> Subject: [GMCnet] NON-gmc- spindle dimension question (dave's back)
>
> Really, I had given up on the Revcon some time ago. But the bride would like to see it resurrected and projects she supports have
> better funding.
>
> Back in the late 60's when Scott Hall sketched the Revocn on a napkin he used off the shelf components from many sources (mostly
> GM)
>
> He converted the chevy 5 lug pattern to a 5 by 8" pattern which was till common on trucks back then.
>
> I'm wondering if i can find some other vehicle that used the same spindle and hub but with an 8 lug wheel.
>
> I've searched a lot of trailer sites looking at spindle dimension with no luck. Spoke to an engineer at Dexter who made it clear
she
> would not help me in any way shape or form (but with a very polite midwest accent)
>
> Any suggestions?
>
> The spindle is 5.25" - 3" section 1.5" dia. 1/8" bevel to 1.25 dia. section 1.25" long followed by 1" of thread.
>
> Grateful for any insight
>
> Sure wish Dan was here to mock me.
>
>
>
>
>
>
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


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Re: NON-gmc- spindle dimension question (dave's back) [message #287078 is a reply to message #287074] Fri, 11 September 2015 11:30 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
Messages: 4508
Registered: April 2011
Karma: 39
Senior Member
hertfordnc wrote on Fri, 11 September 2015 09:58
Really, I had given up on the Revcon some time ago. But the bride would like to see it resurrected and projects she supports have better funding.

Back in the late 60's when Scott Hall sketched the Revocn on a napkin he used off the shelf components from many sources (mostly GM)

He converted the chevy 5 lug pattern to a 5 by 8" pattern which was till common on trucks back then.

I'm wondering if i can find some other vehicle that used the same spindle and hub but with an 8 lug wheel.

I've searched a lot of trailer sites looking at spindle dimension with no luck. Spoke to an engineer at Dexter who made it clear she would not help me in any way shape or form (but with a very polite midwest accent)

Any suggestions?

The spindle is 5.25" - 3" section 1.5" dia. 1/8" bevel to 1.25 dia. section 1.25" long followed by 1" of thread.

Grateful for any insight

Sure wish Dan was here to mock me.
I would have thought the GMC transmode/motorhome parts would do what you want.

Doesn't the Revcon use Toronado knuckles on the front?

Why not replace the spindles (and hubs and drums) with ones from a transmode/motorhome?
Re: NON-gmc- spindle dimension question (dave's back) [message #287084 is a reply to message #287078] Fri, 11 September 2015 13:04 Go to previous messageGo to next message
hertfordnc is currently offline  hertfordnc   United States
Messages: 1164
Registered: September 2009
Location: East NC
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Senior Member
The front is easy- yes the GMC parts will fit with little modification. Hope to score some from the leftovers of a one ton conversion.

In the rear it's more difficult-

It would be a custom adapter from 5 lug by 8" to 8 X 6.5.

THat might be the best option but if i can match the existing spindle to other hubs then i might find in a junkyard.


Dave & Ellen Silva Hertford, NC 76 Birchaven, 1-ton and other stuff Currently planning the Great american Road Trip Summer 2021 It's gonna take a lot of Adderall to get this thing right.
Re: [GMCnet] NON-gmc- spindle dimension question (dave's back) [message #287089 is a reply to message #287084] Fri, 11 September 2015 16:32 Go to previous messageGo to next message
Ken Henderson is currently offline  Ken Henderson   United States
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Registered: March 2004
Location: Americus, GA
Karma: 9
Senior Member
Dave,

Have you checked such as the Airstream trailer axles? A basically unrelaed
story to lead in (old codger that I am): I had a '90 Land Yacht (the
fiberglass one, not the aluminum one) which I drove to the NW & back before
having brake problems -- the brake assembly at on the left end of the tag
axle disassembled itself. Lo & behold, much to my surprise, the tag axle
was nothing but a trailer axle, complete with electric brakes which were
actuated hydraulically by a controller hidden under the dash. A complete
replacement backing plate+everything was only about $100 at an RV dealer.
Needless to say, I've been more curious about what's under my vehicles
since then.

The whole point of that is that there ARE trailer axles out there with
spindles strong enough for your what-the-heck-ever-it-is; you've just got
to find the right one. Or maybe put a different one under there.

Ken H.


On Fri, Sep 11, 2015 at 2:04 PM, dave silva wrote:

> The front is easy- yes the GMC parts will fit with little modification.
> Hope to score some from the leftovers of a one ton conversion.
>
> In the rear it's more difficult-
>
> It would be a custom adapter from 5 lug by 8" to 8 X 6.5.
>
> THat might be the best option but if i can match the existing spindle to
> other hubs then i might find in a junkyard.
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
Re: NON-gmc- spindle dimension question (dave's back) [message #287090 is a reply to message #287084] Fri, 11 September 2015 16:43 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
Messages: 4508
Registered: April 2011
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Senior Member
hertfordnc wrote on Fri, 11 September 2015 13:04
The front is easy- yes the GMC parts will fit with little modification. Hope to score some from the leftovers of a one ton conversion.
In the rear it's more difficult-

It would be a custom adapter from 5 lug by 8" to 8 X 6.5.

THat might be the best option but if i can match the existing spindle to other hubs then i might find in a junkyard.
Remind me again what is keeping you from replacing the spindle itself?
Re: [GMCnet] NON-gmc- spindle dimension question (dave's back) [message #287091 is a reply to message #287084] Fri, 11 September 2015 16:46 Go to previous messageGo to next message
Kosier is currently offline  Kosier   United States
Messages: 834
Registered: February 2008
Karma: 1
Senior Member
Dave,

I would assume that the rear hub on the Revcon is actually a front hub
on some rear wheel drive application. Do the Revcon people have any
info on what the parts came from? It would be easy to check to see if
the spindle and/or bearings continued on into a later 8 lug hub.

Gary Kosier
77PB w/500Cad
Newark, Ohio

--------------------------------------------------
From: "dave silva"
Sent: Friday, September 11, 2015 2:04 PM
To:
Subject: Re: [GMCnet] NON-gmc- spindle dimension question (dave's back)

> The front is easy- yes the GMC parts will fit with little modification.
> Hope to score some from the leftovers of a one ton conversion.
>
> In the rear it's more difficult-
>
> It would be a custom adapter from 5 lug by 8" to 8 X 6.5.
>
> THat might be the best option but if i can match the existing spindle to
> other hubs then i might find in a junkyard.
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


_______________________________________________
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Re: NON-gmc- spindle dimension question (dave's back) [message #287093 is a reply to message #287090] Fri, 11 September 2015 16:59 Go to previous messageGo to next message
hertfordnc is currently offline  hertfordnc   United States
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THere's a range of possible solutions-

The spindles are welded to the axle so replacing them would probably be the most expensive and difficult to get right

A whole new axle might be easy but around $1200

Custom adapters or having the original hubs filled and drilled would probably be cheaper and more likely to be successful

But finding another hub that mates to the spindle would be the easiest and cheapest.



Dave & Ellen Silva Hertford, NC 76 Birchaven, 1-ton and other stuff Currently planning the Great american Road Trip Summer 2021 It's gonna take a lot of Adderall to get this thing right.
Re: NON-gmc- spindle dimension question (dave's back) [message #287096 is a reply to message #287074] Fri, 11 September 2015 18:40 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
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Registered: April 2011
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Senior Member
hertfordnc wrote on Fri, 11 September 2015 16:59
The spindles are welded to the axle so...finding another hub that mates to the spindle would be the easiest and cheapest.
The GMC motorhome/transmode hub might work. You would need to go to a bearing place to get bearings with the right IDs and ODs. And seals.

The caption that goes with this sketch says it is 6" from the flange to the end of the threads. That shoulder at the flange end is a little less than an inch. That might make the wide "X" close to 3 inches.

Measure the distance from the front bearing race to the rear bearing race on the hub you have. See if someone here that has a motorhome hub handy will do the same and compare the results.
http://www.gmcmhphotos.com/photos/data/5104/GMCMH_Rear_Spindle_Sketch.jpg
Re: NON-gmc- spindle dimension question (dave's back) [message #287111 is a reply to message #287096] Fri, 11 September 2015 21:34 Go to previous message
hertfordnc is currently offline  hertfordnc   United States
Messages: 1164
Registered: September 2009
Location: East NC
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Senior Member
Thanks. THat does look like it's in the zone.



Dave & Ellen Silva Hertford, NC 76 Birchaven, 1-ton and other stuff Currently planning the Great american Road Trip Summer 2021 It's gonna take a lot of Adderall to get this thing right.
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