Home » Public Forums » GMCnet » [GMCnet] Front suspension
| [GMCnet] Front suspension [message #208844] |
Sun, 26 May 2013 12:12  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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I need to start budgeting for some front end work. I've always thought this coach wanders too much, even with the back end set properly. The write-ups from Karen, Jerry, and others step me through most procedures, but I have some questions.
Do the new 1-ton front ends use urethane bushings, or are urethane bushings beneficial?
Jim K has a new upper A-Frame from the Curtis's that can add mucho caster. Good idea?
Steering components - Dave Lenzi's parts look to be thoroughly reengineered and I suspect the workmanship is Rolex-like. Also I suspect (for no rational reason) that most of my slop comes from my old steering components.
Opinions are eagerly anticipated and appreciated.
Larry Davick
A Mystery Machine
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Front suspension [message #208863 is a reply to message #208844] |
Sun, 26 May 2013 14:36  |
A Hamilto
Messages: 4508
Registered: April 2011
Karma: 39
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| ljdavick wrote on Sun, 26 May 2013 12:12 |
I need to start budgeting for some front end work. I've always thought this coach wanders too much, even with the back end set properly. The write-ups from Karen, Jerry, and others step me through most procedures, but I have some questions.
Do the new 1-ton front ends use urethane bushings, or are urethane bushings beneficial?
Jim K has a new upper A-Frame from the Curtis's that can add mucho caster. Good idea?
Steering components - Dave Lenzi's parts look to be thoroughly reengineered and I suspect the workmanship is Rolex-like. Also I suspect (for no rational reason) that most of my slop comes from my old steering components.
Opinions are eagerly anticipated and appreciated.
Larry Davick
A Mystery Machine
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If you have lots of dollars, willy-nilly replacement of stuff supports the vendors. I have no problem with that. If you don't have lots of dollars, let the experienced folks here help you narrow down what is wrong, and fix/replace it, not a bunch of stuff that is still serviceable.
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| Re: [GMCnet] Front suspension [message #208870 is a reply to message #208844] |
Sun, 26 May 2013 15:36 |
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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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Larry,
If the slop is in the steering system going through this procedure step by step will find it:
http://www.gmceast.com/technical/Mueller_Steering_Inspection_Guide.pdf
You are correct the parts you get from Dave Lenzi are of the highest quality.
Double Trouble and The Blue Streak have his:
a) hubs and knuckles w/grease zerk
b) idler arm
c) relay lever
d) offset upper control arms with rubber bushings (I get 5° caster on a my '75 Avion)
They also both have reinforced lower control arms from Steve Ferguson with Urethane bushings.
Regards,
Rob M.
-----Original Message-----
From: Larry Davick
I need to start budgeting for some front end work. I've always thought this coach wanders too much, even with the back end set
properly. The write-ups from Karen, Jerry, and others step me through most procedures, but I have some questions.
Do the new 1-ton front ends use urethane bushings, or are urethane bushings beneficial?
Jim K has a new upper A-Frame from the Curtis's that can add mucho caster. Good idea?
Steering components - Dave Lenzi's parts look to be thoroughly reengineered and I suspect the workmanship is Rolex-like. Also I
suspect (for no rational reason) that most of my slop comes from my old steering components.
Opinions are eagerly anticipated and appreciated.
Larry
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Unsubscribe or Change List Options:
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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] Front suspension [message #208882 is a reply to message #208844] |
Sun, 26 May 2013 18:04 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Uerthane is a lower temp compound than the factory rubber. It also will transmit more road shock. Where the upper a bushings are prxomal to the exhaust manifolds its not a low temp environment. Follow Robs list. I could be one bad component ir several adding up. Without doing the 20 min inspection its just blind guessing. I don't like the fact that the 1 ton puts more lever arm loading on the torsion bars.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Front suspension [message #208910 is a reply to message #208870] |
Mon, 27 May 2013 00:38 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Rob,
With all those parts - how does she drive?
Larry Davick
On May 26, 2013, at 1:36 PM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
> Larry,
>
> If the slop is in the steering system going through this procedure step by step will find it:
>
> http://www.gmceast.com/technical/Mueller_Steering_Inspection_Guide.pdf
>
> You are correct the parts you get from Dave Lenzi are of the highest quality.
>
> Double Trouble and The Blue Streak have his:
>
> a) hubs and knuckles w/grease zerk
> b) idler arm
> c) relay lever
> d) offset upper control arms with rubber bushings (I get 5° caster on a my '75 Avion)
>
> They also both have reinforced lower control arms from Steve Ferguson with Urethane bushings.
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Larry Davick
>
> I need to start budgeting for some front end work. I've always thought this coach wanders too much, even with the back end set
> properly. The write-ups from Karen, Jerry, and others step me through most procedures, but I have some questions.
>
> Do the new 1-ton front ends use urethane bushings, or are urethane bushings beneficial?
>
> Jim K has a new upper A-Frame from the Curtis's that can add mucho caster. Good idea?
>
> Steering components - Dave Lenzi's parts look to be thoroughly reengineered and I suspect the workmanship is Rolex-like. Also I
> suspect (for no rational reason) that most of my slop comes from my old steering components.
>
> Opinions are eagerly anticipated and appreciated.
>
> Larry
>
> _______________________________________________
> 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
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Front suspension [message #208925 is a reply to message #208910] |
Mon, 27 May 2013 08:07 |
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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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Larry,
I have about 3/4 in play in the steering wheel and it drives very well. If I am on a three lane freeway in the left hand lane it
drifts off slowly to the left, in the center lane it goes straight, and in the right lane it drifts off slowly to the right.
I went this route because I had seen Dave's workmanship and wanted to keep the front end and suspension as engineered by GMC.
A lot of people have installed the 1 Ton front end and are happy with it and empirical engineering has shown it to be OK.
Regards,
Rob M.
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Larry Davick
Sent: Monday, May 27, 2013 12:39 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Front suspension
Rob,
With all those parts - how does she drive?
Larry Davick
On May 26, 2013, at 1:36 PM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
> Larry,
>
> If the slop is in the steering system going through this procedure step by step will find it:
>
> http://www.gmceast.com/technical/Mueller_Steering_Inspection_Guide.pdf
>
> You are correct the parts you get from Dave Lenzi are of the highest quality.
>
> Double Trouble and The Blue Streak have his:
>
> a) hubs and knuckles w/grease zerk
> b) idler arm
> c) relay lever
> d) offset upper control arms with rubber bushings (I get 5° caster on a my '75 Avion)
>
> They also both have reinforced lower control arms from Steve Ferguson with Urethane bushings.
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Larry Davick
>
> I need to start budgeting for some front end work. I've always thought this coach wanders too much, even with the back end set
> properly. The write-ups from Karen, Jerry, and others step me through most procedures, but I have some questions.
>
> Do the new 1-ton front ends use urethane bushings, or are urethane bushings beneficial?
>
> Jim K has a new upper A-Frame from the Curtis's that can add mucho caster. Good idea?
>
> Steering components - Dave Lenzi's parts look to be thoroughly reengineered and I suspect the workmanship is Rolex-like. Also I
> suspect (for no rational reason) that most of my slop comes from my old steering components.
>
> Opinions are eagerly anticipated and appreciated.
>
> Larry
>
> _______________________________________________
> 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
_______________________________________________
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] Front suspension [message #208938 is a reply to message #208925] |
Mon, 27 May 2013 11:03 |
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hnielsen2
Messages: 1434
Registered: February 2004
Location: Alpine CA
Karma: 0
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Senior Member |
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Netters
Very happy with ours
After installation at Manny's drove U S 17 to the coast just south of Santa Cruz to Sea Cliff California State camp ground.
This is state camp ground is located on the beach with water and electric hookup.
Then south on CA 1 all the way to Morrow Bay.
Both these routes are white knuckle highway for some folks.
Flat landers " warning" very few guard rails.
I'm married to one from Michigan.
Our GMC handled fine for the both of us.
Also like the larger brakes.
With the stock system that was tight a different story.
Thank You
Howard
Alpine CA
26' Canyon Lands
Not quite Stock.
All is well with my Lord
On May 27, 2013, at 6:07 AM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
> Larry,
>
> I have about 3/4 in play in the steering wheel and it drives very well. If I am on a three lane freeway in the left hand lane it
> drifts off slowly to the left, in the center lane it goes straight, and in the right lane it drifts off slowly to the right.
>
> I went this route because I had seen Dave's workmanship and wanted to keep the front end and suspension as engineered by GMC.
>
> A lot of people have installed the 1 Ton front end and are happy with it and empirical engineering has shown it to be OK.
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Larry Davick
> Sent: Monday, May 27, 2013 12:39 AM
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Front suspension
>
> Rob,
>
> With all those parts - how does she drive?
>
> Larry Davick
>
> On May 26, 2013, at 1:36 PM, "Rob Mueller" <robmueller@iinet.net.au> wrote:
>
>> Larry,
>>
>> If the slop is in the steering system going through this procedure step by step will find it:
>>
>> http://www.gmceast.com/technical/Mueller_Steering_Inspection_Guide.pdf
>>
>> You are correct the parts you get from Dave Lenzi are of the highest quality.
>>
>> Double Trouble and The Blue Streak have his:
>>
>> a) hubs and knuckles w/grease zerk
>> b) idler arm
>> c) relay lever
>> d) offset upper control arms with rubber bushings (I get 5° caster on a my '75 Avion)
>>
>> They also both have reinforced lower control arms from Steve Ferguson with Urethane bushings.
>>
>> Regards,
>> Rob M.
>>
>> -----Original Message-----
>> From: Larry Davick
>>
>> I need to start budgeting for some front end work. I've always thought this coach wanders too much, even with the back end set
>> properly. The write-ups from Karen, Jerry, and others step me through most procedures, but I have some questions.
>>
>> Do the new 1-ton front ends use urethane bushings, or are urethane bushings beneficial?
>>
>> Jim K has a new upper A-Frame from the Curtis's that can add mucho caster. Good idea?
>>
>> Steering components - Dave Lenzi's parts look to be thoroughly reengineered and I suspect the workmanship is Rolex-like. Also I
>> suspect (for no rational reason) that most of my slop comes from my old steering components.
>>
>> Opinions are eagerly anticipated and appreciated.
>>
>> Larry
>>
>> _______________________________________________
>> 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
>
> _______________________________________________
> 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
All is well with my Lord
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| Re: [GMCnet] Front suspension [message #209007 is a reply to message #208949] |
Mon, 27 May 2013 23:25 |
Hal StClair
Messages: 971
Registered: March 2013
Location: Rio Rancho NM
Karma: -12
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Senior Member |
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The ball joints should be metric to fit the spindle so yes, they are different.
Hal
"I enjoy talking to you. Your mind appeals to me. It resembles my own mind, except you happen to be insane."
1977 Royale 101348,
1977 Royale 101586, Diesel powered,
1974 Eagle Bus 45',w/slideout,
Rio Rancho, NM
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