GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » [GMCnet] COOP Duramax Engine Installation
[GMCnet] COOP Duramax Engine Installation [message #145889] Fri, 07 October 2011 23:13 Go to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
John,

The Duramax engine installations by Jim Bounds down at the Coop were front wheel drive. The engine drove the front wheels through an
Allison transmission and transfer case.

IIRC the 23' was built on a full Workhorse chassis and the 26' the Workhorse chassis was married to the GMC frame to retain the rear
suspension.

Regards,
Rob M.

From: john arbuckle

Cool key fobs, I was wondering with the duramax engine install was the
RV kept front wheel drive and if yes how was that accomplished. Or was
it converted to a rear wheel drive? Sorry to veer off subject just saw
it in the pictures and had thought about that recently and wondered if
it was possible? Obviously it is possible. Just wondering and I also
think the key fobs would be a great idea. Thank you

John

_______________________________________________
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
Re: [GMCnet] COOP Duramax Engine Installation [message #145947 is a reply to message #145889] Sat, 08 October 2011 21:33 Go to previous messageGo to next message
john arbuckle is currently offline  john arbuckle   United States
Messages: 122
Registered: March 2010
Karma: 0
Senior Member
So it is a conversion done by Jim? Does it rest on the original frame?
Or is it a total new frame? I am really intrested in this whole
process. Is there a ball park price for such an intense upgrade? Just
wanting a little more info because that sound like a bad a** rig when
all done. Let me know if you have any idea. I own a 26 foot Palm
Beach.

Thank you
John Arbuckle
1976 Palm Beach
Bellingham Washington.

On Fri, Oct 7, 2011 at 9:13 PM, Rob Mueller <robmueller@iinet.net.au> wrote:
> John,
>
> The Duramax engine installations by Jim Bounds down at the Coop were front wheel drive. The engine drove the front wheels through an
> Allison transmission and transfer case.
>
> IIRC the 23' was built on a full Workhorse chassis and the 26' the Workhorse chassis was married to the GMC frame to retain the rear
> suspension.
>
> Regards,
> Rob M.
>
> From: john arbuckle
>
> Cool key fobs, I was wondering with the duramax engine install was the
> RV kept front wheel drive and if yes how was that accomplished. Or was
> it converted to a rear wheel drive? Sorry to veer off subject just saw
> it in the pictures and had thought about that recently and wondered if
> it was possible? Obviously it is possible. Just wondering and I also
> think the key fobs would be a great idea. Thank you
>
> John
>
> _______________________________________________
> 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

Re: [GMCnet] COOP Duramax Engine Installation [message #145949 is a reply to message #145947] Sat, 08 October 2011 22:23 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
John,

The conversion was done by Jim.

As I understand it the 23 foot GMC was built on a Workhorse frame.

AS I understand it the 26 foot GMC was a marriage of a GMC frame and a Workhorse frame.

The word "on the street" is that the 23' GMC cost around $125,000 (ONE HUNDRED AND TWENTY FIVE THOUSAND DOLLARS)

The word "on the street" is that the 26' GMC cost around $250,000 (TWO HUNDRED AND FIFTY THOUSAND DOLLARS).

Still really interested? ;-)

Oh yeah, by the way Jim told me he'd NEVER build another one!

I've copied him on this email in case I've gotten something wrong.

Regards,
Rob M.

-----Original Message-----
From: john arbuckle

So it is a conversion done by Jim? Does it rest on the original frame?
Or is it a total new frame? I am really intrested in this whole
process. Is there a ball park price for such an intense upgrade? Just
wanting a little more info because that sound like a bad a** rig when
all done. Let me know if you have any idea. I own a 26 foot Palm
Beach.

Thank you
John


_______________________________________________
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
Re: [GMCnet] COOP Duramax Engine Installation [message #145965 is a reply to message #145949] Sun, 09 October 2011 08:03 Go to previous message
USAussie is currently offline  USAussie   Australia
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
Senior Member
G'day,

Got got a couple of messages from JimB re this subject.

Regards,
Rob M.

Rob, can you please forward my post to the net, my phone does not do well on the net. Thanks and thanks for the support
Jim Bounds

Rob, thanks for trying to field questions on the "Dramax" projects. It was an exercise in just how far you,would have to go to really build a correctly build a current technology, state of the art gmc documented that could be maintained by a current factory repair center. Not build one off custom parts but we ended up with custom vehicle that while it could be worked on so so difficult and custom to build is more expensive than most would be willing to invest.

We truly can build them after doing it twice (a 23' and 26') so no one can say it was a fluke. Total cost on the 23' topped out adding my investment in prototyping of @ $300,000 with the 26' coach built for a movie star to his designers spec.(who designed Johnny Deeps tagged) over $400,000 and we are as yet not done!

These machines are so far over the top they are airborne and while everyone scoff and says how jutting, I can roll back in my chair and say yea but we did it! No brag but thermal fact that it was done and there are 2 on this planet to prove it can be done. Rob is right in that I do not want to build one again, I cannot take on the prototyping and the trial & error expense to do it again. The owner would have to take on it all for another one so I think I'm pretty safe.

The 23' coach was delivered and is now near Denver where it got 16 mph with the wrong diff geT ( was set up as a shuttle bus ). Can't wait till the gear is changed which btw is big bucks!

These machines are awesome but totally in cost effective but hey, they live! The biggest reason for having something like them is because you want one,,, but wait, Ian't that why you have a gmc anyway? These just have a few more 0's on the price tag!

If you want to loose your mind and maybe a chunk of your wallet like me,,,, come on down an.d leave the phrase "how much" at home! See, I will, have and will continue to jump out on that thin limb, come on in, the waters fine!

Jim Bounds
Previous Topic: A couple of Key Fob options
Next Topic: About Toro Transmissions
Goto Forum:
  


Current Time: Mon Nov 18 18:46:05 CST 2024

Total time taken to generate the page: 0.00651 seconds