Another example of different wheel tracks front to rear

[Bill Bryant]

Hi all, this is getting like a tire discussion.

Will attempt to answer some questions;

RobW
Yes the Toronado frame cross members were widened to match the rear side channels, Toro frame side rails unchanged.

Jerry
My brother in law had a new 1966 Toronado, he liked the car very much but complained bitterly about having to replace quickly worn front tires.

GMC MH Engineers; Ralph Merkle was the MH engineer who designed the frame,suspension and all hardware below the body. We talked many times about how
this all came about (I often recorded my interviews, recently I passed those tapes on to Kim W) unfortunately our discussions were usually about other
unique features and not about that dull no interest front suspension. I got Ralph Merkle to attend the Marion, NC Convention with his wife Mary. He
was pleased to see his ideas on display, nearly 400 GMC MHs attending, the largest gathering ever! Ralph passed away shortly after that convention,
would love to have been able to discuss todays concerns. Two other Engineers I got to attend a GMC MH Convention were Nancy Bundra and John Locklin.
I had tried to get others to a Conventions (as well as Alex Mair, GMC GM) but that didn't happen.

Lots more stories but that's it for now.
Bill

--
Bill Bryant
1976~PB
1914 Ford
1965 Corvette
GMC MH History CD & GMC Showroom DVD
Workprint DVD GMC development 11-70 to 3-71
http://bdub.net/billbryant/

 

[robert mueller]

Matt,

Yep I screwed up; I'll try again:

Compare the Toronado frame drawing that BillW posted

http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p64869-toronado-frame1.html

and the photo of the GMC front frame I posted:

http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p64868-gmc-frame2.html

To me the side rails to which the upper and lower control arms are welded sure don't look like the same stamping on the Toronado and
GMC..

Rich, I agree that the jigs for the upper and lower control arm attachment points would be the same as the upper control arm and
lower control arm were the same (bar reinforcing for the GMC).

PLEASE print out the two photos I have posted and compare them side by side; in my opinion as we say Downunder blind Freddy could
see the side rails are not the same. ;-)

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808


-----Original Message-----
From: Gmclist [mailto:gmclist-bounces] On Behalf Of Matt Colie
Sent: Tuesday, June 12, 2018 10:02 AM
To: gmclist
Subject: Re: [GMCnet] Another example of different wheel tracks front to rear

> G'day,
>
> Compare the Toronado frame drawing that BillW posted
>
> http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p64869-toronado-frame1.html
>
> and the photo of the GMC front frame I posted:
>
> http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p64869-toronado-frame1.html
>
> To me they sure don't look like the same stamping.
>
> Regards,
> Rob M.

Rob,

It sure looks like you posted the same link twice.

Matt
--
Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan
OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Twixt A2 and Detroit

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

 

[sgltrac]

Hey! That galvanized front clip looks pretty familiar!

Sully
Bellevue

> Matt,
>
> Yep I screwed up; I'll try again:
>
> Compare the Toronado frame drawing that BillW posted
>
>
> http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p64869-toronado-frame1.html
>
> and the photo of the GMC front frame I posted:
>
>
> http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p64868-gmc-frame2.html
>
> To me the side rails to which the upper and lower control arms are welded
> sure don't look like the same stamping on the Toronado and
> GMC..
>
> Rich, I agree that the jigs for the upper and lower control arm attachment
> points would be the same as the upper control arm and
> lower control arm were the same (bar reinforcing for the GMC).
>
> PLEASE print out the two photos I have posted and compare them side by
> side; in my opinion as we say Downunder blind Freddy could
> see the side rails are not the same. ;-)
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
> USA '77 Kingsley - TZE 267V100808
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces] On Behalf Of Matt
> Colie
> Sent: Tuesday, June 12, 2018 10:02 AM
> To: gmclist
> Subject: Re: [GMCnet] Another example of different wheel tracks front to
> rear
>

> > G'day,
> >
> > Compare the Toronado frame drawing that BillW posted
> >
> >
> http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p64869-toronado-frame1.html
> >
> > and the photo of the GMC front frame I posted:
> >
> >
> http://www.gmcmhphotos.com/photos/aa-miscellaneous-photos/p64869-toronado-frame1.html
> >
> > To me they sure don't look like the same stamping.
> >
> > Regards,
> > Rob M.
>
> Rob,
>
> It sure looks like you posted the same link twice.
>
> Matt
> --
> Matt & Mary Colie - '73 Glacier 23 - Members GMCMI, GMCGL, GMCES
> Electronically Controlled Quiet Engine Cooling Fan
> OE Rear Drum Brakes with Applied Control Arms
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

 

[gmc260]

there should be some very precise blueprints that indicate all the suspension pick up points on the frames for both the motorhome and the toranado
that coud be compared more closely. these type of blueprints are often provided to crash repair facilities so they can bend frames back into shape.
Ive seen them for other late '60s cars, they give triangulation measurements for each pick up point.