New build (maybe)

H

hal stclair

New member
Mar 26, 2013
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I'm in the early stages of a different type of build. This will be a rather slow process as there are a number of unique challenges facing me. I
hesitate to even share until further along but a good friend (Wally) thinks some may appreciate watching. Just a warning, it may never come to
fruition but the journey should be fun.

I'm building new rear control arms for the 'project' GMC and have been working on a method to make the brakes work as a reaction arm setup. This sends
the braking action straight to the frame instead of the tire/control arm and makes a tremendous difference in stopping distances- nearly drops
stopping distance 50% over the stock system. It's been quite a challenge so far...
Hal

https://www.dropbox.com/l/scl/AAD36I-yv8Mi8_Dhy42wVrh4pbrhTQCxN4Y
--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230,

1974 Eagle Bus 45',w/slideout,

Rio Rancho, NM
 
Don’t have drop box, have another option?

Chaplain Randy Hecht
Roswell, GA
Chaplains are ready to Listen when you're ready to talk.

1974 Canyon Lakes GMC the Unicorn Express
80mm Front Disc and a work in progress

>
> I'm in the early stages of a different type of build. This will be a rather slow process as there are a number of unique challenges facing me. I
> hesitate to even share until further along but a good friend (Wally) thinks some may appreciate watching. Just a warning, it may never come to
> fruition but the journey should be fun.
>
> I'm building new rear control arms for the 'project' GMC and have been working on a method to make the brakes work as a reaction arm setup. This sends
> the braking action straight to the frame instead of the tire/control arm and makes a tremendous difference in stopping distances- nearly drops
> stopping distance 50% over the stock system. It's been quite a challenge so far...
> Hal
>
> https://www.dropbox.com/l/scl/AAD36I-yv8Mi8_Dhy42wVrh4pbrhTQCxN4Y
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586, Diesel powered,
>
> 1975 Eleganza II, 101230,
>
> 1974 Eagle Bus 45',w/slideout,
>
> Rio Rancho, NM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Hal

That’s a very interesting take.

Can’t wait to hear how it runs on the road!

Dolph Santorine

DE AD0LF

Wheeling, West Virginia

1977 ex-Palm Beach TZE167V100820
Howell EFI/EBL , Reaction Arms, Manny Transmission

>
> I'm in the early stages of a different type of build. This will be a rather slow process as there are a number of unique challenges facing me. I
> hesitate to even share until further along but a good friend (Wally) thinks some may appreciate watching. Just a warning, it may never come to
> fruition but the journey should be fun.
>
> I'm building new rear control arms for the 'project' GMC and have been working on a method to make the brakes work as a reaction arm setup. This sends
> the braking action straight to the frame instead of the tire/control arm and makes a tremendous difference in stopping distances- nearly drops
> stopping distance 50% over the stock system. It's been quite a challenge so far...
> Hal
>
> https://www.dropbox.com/l/scl/AAD36I-yv8Mi8_Dhy42wVrh4pbrhTQCxN4Y
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586, Diesel powered,
>
> 1975 Eleganza II, 101230,
>
> 1974 Eagle Bus 45',w/slideout,
>
> Rio Rancho, NM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
We just posted to U Tube.
Hal
--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230,

1974 Eagle Bus 45',w/slideout,

Rio Rancho, NM
 
Thanks for sharing, Hal
It's great to see well thought through approaches to issues we all share. Like having the engine too close to the driver.
--
Bill Van Vlack
'76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath, Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o mid
November 2015.
 
What the U-tube link?

On Sun, May 10, 2020 at 6:47 PM Bill Van Vlack via Gmclist <

> Thanks for sharing, Hal
> It's great to see well thought through approaches to issues we all share.
> Like having the engine too close to the driver.
> --
> Bill Van Vlack
> '76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath,
> Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o
> mid
> November 2015.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Interesting solution to combining several improvements into a tight package.
I’m quite curious to see how you will build the actual suspension arm. To minimize flexing, it will take a stout piece.

Les Burt
Montreal
'75 Eleganza 26'

>
> I'm in the early stages of a different type of build. This will be a rather slow process as there are a number of unique challenges facing me. I
> hesitate to even share until further along but a good friend (Wally) thinks some may appreciate watching. Just a warning, it may never come to
> fruition but the journey should be fun.
>
> I'm building new rear control arms for the 'project' GMC and have been working on a method to make the brakes work as a reaction arm setup. This sends
> the braking action straight to the frame instead of the tire/control arm and makes a tremendous difference in stopping distances- nearly drops
> stopping distance 50% over the stock system. It's been quite a challenge so far...
> Hal
>
> https://www.dropbox.com/l/scl/AAD36I-yv8Mi8_Dhy42wVrh4pbrhTQCxN4Y
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586, Diesel powered,
>
> 1975 Eleganza II, 101230,
>
> 1974 Eagle Bus 45',w/slideout,
>
> Rio Rancho, NM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Thanks for keeping us posted, Hal.

Ken H.

On Thu, May 14, 2020 at 9:44 PM Hal StClair via Gmclist <

> Got a little more done if you're interested.
>
> https://youtu.be/-rtKa7_BOSI
>
> Hal
> --
> 1977 Royale 101348,
>
> 1977 Royale 101586, Diesel powered,
>
> 1975 Eleganza II, 101230,
>
> 1974 Eagle Bus 45',w/slideout,
>
> Rio Rancho, NM
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
 
Thats going to be so cool Hal....your making me wish i still had my shop :(
--
Rich Mondor,

Brockville, ON

77 Hughes 2600
 
Nicely done. It will be interesting to see if those arms will flex and then return to position any better than the OE units after encountering road obstacles.

Perhaps road testing them on the rear position only of an existing coach might be an effort worth undertaking.

Les Burt
Montreal
'75 Eleganza 26'

>
> Thats going to be so cool Hal....your making me wish i still had my shop :(
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
You could run a drive axle through that in the rear........

--johnny
--
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
 
> Nicely done. It will be interesting to see if those arms will flex and then return to position any better than the OE units after encountering
> road obstacles.
>
> Perhaps road testing them on the rear position only of an existing coach might be an effort worth undertaking.
>
>
> Les Burt
> Montreal
> '75 Eleganza 26'
>
> I have my doubts they will do much flexing Les. I'm planning on building a 'true track' type support to help protect things. I want to protect the
> bogey box/pins as I think they will be stressed more in this application. With the extra support from the added bearing and acting as a stop for
> arm movement I think it will be OK. Lots of balls in the air with this build :roll: Hal
>

> >
> > Thats going to be so cool Hal....your making me wish i still had my shop :(
> > --
> > Rich Mondor,
> >
> > Brockville, ON
> >
> > 77 Hughes 2600
> >
> > _______________________________________________
> > 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

--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230,

1974 Eagle Bus 45',w/slideout,

Rio Rancho, NM
 
I had some feedback that my last video was a bit confusing. I've tried to explain things a little better here.

https://youtu.be/ObQZixeI39E

Hal
--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230,

1974 Eagle Bus 45',w/slideout,

Rio Rancho, NM
 
Thanks, Hal... pretty clear now. Question: how will the drive axles pass by/through the frame?

It occurs to me that the electric drive folks might need this sort of system once batteries shrink by a few orders of magnitude.
--
Bill Van Vlack
'76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath, Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o mid
November 2015.
 
As I'm building a new frame a loop will be required for axle/half shaft clearance. Driving the rear wheels should let me hide any in floor intrusion
of the differential or half shafts (if necessary, it'll be close) under the bed. The stretch makes room for the rear wheel drive with about a foot
extension behind the axle. The taller new frame will help with ground clearance especially with the 12" added overhang.
Lots of fun, thanks for watching.
Hal
--
1977 Royale 101348,

1977 Royale 101586, Diesel powered,

1975 Eleganza II, 101230,

1974 Eagle Bus 45',w/slideout,

Rio Rancho, NM
 
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