Ride height sensor link length?

Keith V

Well-known member
Mar 26, 2008
3,604
399
83
Can someone measure the length of the lower link, i.e. the link that connects the control to the sensor?

I'm trying to do some geometry and I don't have the lower links.

Thanks!
 
Contact Ken Henderson. He made up sets of adjustable links to replace the fixed factory links. Should easily solve your problem.
Tom, MS Ii
--
1975 GMC Avion
KA4CSG
 
I bought adjustable links from Dave Lenzi.

Mac in OKC
'76 ex PB

Sent from my iPad

>
> Contact Ken Henderson. He made up sets of adjustable links to replace the fixed factory links. Should easily solve your problem.
> Tom, MS Ii
> --
> 1975 GMC Avion
> KA4CSG
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
I think Keith is working on a electronic replacement for the ride height controls, kinda like Dakota Digital used to sell. So he might not have the
OEM stuff anymore, that's he's asking for the measurements.

I'm about 3,000 miles from the coach, sorry I can't help. But the Murray has Hendrickson ride controllers from a PO so likely a different length
anyway.
--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
Hubler 1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
 
Keith,

My link (adjustable) are set at 3.875 center to center.

Get the adjustable, there's not enough adjustment on the heigth valve arm

JMO

--
”When we avoid the mistakes we might have made, we sometimes make the mistakes that we might have avoided.”

Adrien & Jenny Genesoto
75 Glenbrook 26-3
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
 
I have my stock links off right now on the workbench. Can measure them tomorrow if no one can come up with it by then.
--
76 Eleganza mostly stock, Sully bags, needs one of everything.
 
Keith,

To set my adjustable ride height links to the same length as the OEM fixed
links, I use a couple of those links as jigs. I've just re-measured their
center-to-center lengths: 5.0"

If you're going to Shawnee, I'll have the FINAL 10 sets of my adjustable
ride height links available. The parts arrived today to finish up the
partials I had on hand when I declared "no more". I gave JimK all the
relevant part numbers and instruction; I think he's planning to produce
them.

Ken H.

> Can someone measure the length of the lower link, i.e. the link that
> connects the control to the sensor?
>
> I'm trying to do some geometry and I don't have the lower links.
>
 
Wow great responses!

I wonder why Jon shows 2.5" longer

Are all lengths the same?

Ken are all year links the same? I have power level valves.

And Bruce is right ride height sensor geometry is the last thing I need to do on my electronic controller.

The link lengths are different from OEM but I want to verify my setup. I have some adjustable links around here somewhere, but who knows where they are or what length they are set to

________________________________
From: Gmclist on behalf of Ken Henderson
Sent: Tuesday, March 7, 2017 8:33:01 AM
To: gmclist
Subject: Re: [GMCnet] Ride height sensor link length?

Keith,

To set my adjustable ride height links to the same length as the OEM fixed
links, I use a couple of those links as jigs. I've just re-measured their
center-to-center lengths: 5.0"

If you're going to Shawnee, I'll have the FINAL 10 sets of my adjustable
ride height links available. The parts arrived today to finish up the
partials I had on hand when I declared "no more". I gave JimK all the
relevant part numbers and instruction; I think he's planning to produce
them.

Ken H.

> Can someone measure the length of the lower link, i.e. the link that
> connects the control to the sensor?
>
> I'm trying to do some geometry and I don't have the lower links.
>
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Unsubscribe or Change List Options:
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Keith,
I've thought about the geometry of the height control valves since mine are not OEM. I'm thinking you would want to have maximum movement of your
height control sensor at normal ride height. That should give you the finest control of ride height at your normal ride height.
Of course you need to keep the sensor within its measurement range through the maximum movement of the bogie.

Just my farmboy shade-tree mechanic way of seeing it.
--
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
Hubler 1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
 
Keith,

I'm positive about my OEM links' length at 5.0". Keith's 3.875"
adjustables have probably been reset either to change ride height or to
compensate for changing the arm position, as described in the manual. I
can't imagine where Jon's 7.5" came from unless he measured the arm rather
than the link.

I don't know whether there is any link difference over the years. I've
never had anyone return my links, saying they didn't fit. I just tried to
find them in the 78Z parts book. I found them in an IPB, but with no
reference number nor part number. I still think they're all the same.

Ken H.

> Wow great responses!
>
> I wonder why Jon shows 2.5" longer
>
> Are all lengths the same?
>
>
> Ken are all year links the same? I have power level valves.
>
>
> And Bruce is right ride height sensor geometry is the last thing I need to
> do on my electronic controller.
>
> The link lengths are different from OEM but I want to verify my setup. I
> have some adjustable links around here somewhere, but who knows where they
> are or what length they are set to
>
> ________________________________
> From: Gmclist on behalf of Ken
> Henderson
> Sent: Tuesday, March 7, 2017 8:33:01 AM
> To: gmclist
> Subject: Re: [GMCnet] Ride height sensor link length?
>
> Keith,
>
> To set my adjustable ride height links to the same length as the OEM fixed
> links, I use a couple of those links as jigs. I've just re-measured their
> center-to-center lengths: 5.0"
>
> If you're going to Shawnee, I'll have the FINAL 10 sets of my adjustable
> ride height links available. The parts arrived today to finish up the
> partials I had on hand when I declared "no more". I gave JimK all the
> relevant part numbers and instruction; I think he's planning to produce
> them.
>
> Ken H.
>
>

>
> > Can someone measure the length of the lower link, i.e. the link that
> > connects the control to the sensor?
> >
> > I'm trying to do some geometry and I don't have the lower links.
> >
> _______________________________________________
> 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
>
 
Thanks Ken, thats what I will use.

Bruce, yes the design criteria is maximum resolution at ride height and full suspension travel.

The cosine error increases as you move away from ride height

________________________________
From: Gmclist on behalf of Ken Henderson
Sent: Tuesday, March 7, 2017 10:45:34 AM
To: gmclist
Subject: Re: [GMCnet] Ride height sensor link length?

Keith,

I'm positive about my OEM links' length at 5.0". Keith's 3.875"
adjustables have probably been reset either to change ride height or to
compensate for changing the arm position, as described in the manual. I
can't imagine where Jon's 7.5" came from unless he measured the arm rather
than the link.

I don't know whether there is any link difference over the years. I've
never had anyone return my links, saying they didn't fit. I just tried to
find them in the 78Z parts book. I found them in an IPB, but with no
reference number nor part number. I still think they're all the same.

Ken H.

> Wow great responses!
>
> I wonder why Jon shows 2.5" longer
>
> Are all lengths the same?
>
>
> Ken are all year links the same? I have power level valves.
>
>
> And Bruce is right ride height sensor geometry is the last thing I need to
> do on my electronic controller.
>
> The link lengths are different from OEM but I want to verify my setup. I
> have some adjustable links around here somewhere, but who knows where they
> are or what length they are set to
>
> ________________________________
> From: Gmclist on behalf of Ken
> Henderson
> Sent: Tuesday, March 7, 2017 8:33:01 AM
> To: gmclist
> Subject: Re: [GMCnet] Ride height sensor link length?
>
> Keith,
>
> To set my adjustable ride height links to the same length as the OEM fixed
> links, I use a couple of those links as jigs. I've just re-measured their
> center-to-center lengths: 5.0"
>
> If you're going to Shawnee, I'll have the FINAL 10 sets of my adjustable
> ride height links available. The parts arrived today to finish up the
> partials I had on hand when I declared "no more". I gave JimK all the
> relevant part numbers and instruction; I think he's planning to produce
> them.
>
> Ken H.
>
>

>
> > Can someone measure the length of the lower link, i.e. the link that
> > connects the control to the sensor?
> >
> > I'm trying to do some geometry and I don't have the lower links.
> >
> _______________________________________________
> 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
>
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Ken,

Try part #4950793, item #38, page 14-11

Gary Kosier
77PB w/500Cad
Newark, Ohio

--------------------------------------------------
From: "Ken Henderson"
Sent: Tuesday, March 07, 2017 11:45 AM
To:
Subject: Re: [GMCnet] Ride height sensor link length?

> Keith,
>
> I'm positive about my OEM links' length at 5.0". Keith's 3.875"
> adjustables have probably been reset either to change ride height or to
> compensate for changing the arm position, as described in the manual. I
> can't imagine where Jon's 7.5" came from unless he measured the arm rather
> than the link.
>
> I don't know whether there is any link difference over the years. I've
> never had anyone return my links, saying they didn't fit. I just tried to
> find them in the 78Z parts book. I found them in an IPB, but with no
> reference number nor part number. I still think they're all the same.
>
> Ken H.
>
>

>
>> Wow great responses!
>>
>> I wonder why Jon shows 2.5" longer
>>
>> Are all lengths the same?
>>
>>
>> Ken are all year links the same? I have power level valves.
>>
>>
>> And Bruce is right ride height sensor geometry is the last thing I need
>> to
>> do on my electronic controller.
>>
>> The link lengths are different from OEM but I want to verify my setup. I
>> have some adjustable links around here somewhere, but who knows where
>> they
>> are or what length they are set to
>>
>> ________________________________
>> From: Gmclist on behalf of Ken
>> Henderson
>> Sent: Tuesday, March 7, 2017 8:33:01 AM
>> To: gmclist
>> Subject: Re: [GMCnet] Ride height sensor link length?
>>
>> Keith,
>>
>> To set my adjustable ride height links to the same length as the OEM
>> fixed
>> links, I use a couple of those links as jigs. I've just re-measured
>> their
>> center-to-center lengths: 5.0"
>>
>> If you're going to Shawnee, I'll have the FINAL 10 sets of my adjustable
>> ride height links available. The parts arrived today to finish up the
>> partials I had on hand when I declared "no more". I gave JimK all the
>> relevant part numbers and instruction; I think he's planning to produce
>> them.
>>
>> Ken H.
>>
>>

>>
>> > Can someone measure the length of the lower link, i.e. the link that
>> > connects the control to the sensor?
>> >
>> > I'm trying to do some geometry and I don't have the lower links.
>> >
>> _______________________________________________
>> 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
>>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
 
Keith,

One of our more erudite GMCNetters steered me to the parts manual listing
for the link. There are two listings, prior to 6V100868 and effective with
that number -- both for the same part. So apparently the 5.0" link was
installed on all coaches.

Ken H.

On Tue, Mar 7, 2017 at 11:45 AM, Ken Henderson
wrote:

> Keith,
>
> I'm positive about my OEM links' length at 5.0". Keith's 3.875"
> adjustables have probably been reset either to change ride height or to
> compensate for changing the arm position, as described in the manual. I
> can't imagine where Jon's 7.5" came from unless he measured the arm rather
> than the link.
>
> I don't know whether there is any link difference over the years. I've
> never had anyone return my links, saying they didn't fit. I just tried to
> find them in the 78Z parts book. I found them in an IPB, but with no
> reference number nor part number. I still think they're all the same.
>
> Ken H.
>
>

>
>> Wow great responses!
>>
>> I wonder why Jon shows 2.5" longer
>>
>> Are all lengths the same?
>>
>>
>> Ken are all year links the same? I have power level valves.
>>
>>
>> And Bruce is right ride height sensor geometry is the last thing I need
>> to do on my electronic controller.
>>
>> The link lengths are different from OEM but I want to verify my setup. I
>> have some adjustable links around here somewhere, but who knows where they
>> are or what length they are set to
>>
>> ________________________________
>> From: Gmclist on behalf of Ken
>> Henderson
>> Sent: Tuesday, March 7, 2017 8:33:01 AM
>> To: gmclist
>> Subject: Re: [GMCnet] Ride height sensor link length?
>>
>> Keith,
>>
>> To set my adjustable ride height links to the same length as the OEM fixed
>> links, I use a couple of those links as jigs. I've just re-measured their
>> center-to-center lengths: 5.0"
>>
>> If you're going to Shawnee, I'll have the FINAL 10 sets of my adjustable
>> ride height links available. The parts arrived today to finish up the
>> partials I had on hand when I declared "no more". I gave JimK all the
>> relevant part numbers and instruction; I think he's planning to produce
>> them.
>>
>> Ken H.
>>
>>

>>
>> > Can someone measure the length of the lower link, i.e. the link that
>> > connects the control to the sensor?
>> >
>> > I'm trying to do some geometry and I don't have the lower links.
>> >
>> _______________________________________________
>> 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
>>
>
>
 
oh wow it is there, I gave up when I didn't see it on the valve drawing.

Thanks, now to simulate the linkage [?]

________________________________
From: Gmclist on behalf of Ken Henderson
Sent: Tuesday, March 7, 2017 8:42:47 PM
To: gmclist
Subject: Re: [GMCnet] Ride height sensor link length?

Keith,

One of our more erudite GMCNetters steered me to the parts manual listing
for the link. There are two listings, prior to 6V100868 and effective with
that number -- both for the same part. So apparently the 5.0" link was
installed on all coaches.

Ken H.

On Tue, Mar 7, 2017 at 11:45 AM, Ken Henderson
wrote:

> Keith,
>
> I'm positive about my OEM links' length at 5.0". Keith's 3.875"
> adjustables have probably been reset either to change ride height or to
> compensate for changing the arm position, as described in the manual. I
> can't imagine where Jon's 7.5" came from unless he measured the arm rather
> than the link.
>
> I don't know whether there is any link difference over the years. I've
> never had anyone return my links, saying they didn't fit. I just tried to
> find them in the 78Z parts book. I found them in an IPB, but with no
> reference number nor part number. I still think they're all the same.
>
> Ken H.
>
>

>
>> Wow great responses!
>>
>> I wonder why Jon shows 2.5" longer
>>
>> Are all lengths the same?
>>
>>
>> Ken are all year links the same? I have power level valves.
>>
>>
>> And Bruce is right ride height sensor geometry is the last thing I need
>> to do on my electronic controller.
>>
>> The link lengths are different from OEM but I want to verify my setup. I
>> have some adjustable links around here somewhere, but who knows where they
>> are or what length they are set to
>>
>> ________________________________
>> From: Gmclist on behalf of Ken
>> Henderson
>> Sent: Tuesday, March 7, 2017 8:33:01 AM
>> To: gmclist
>> Subject: Re: [GMCnet] Ride height sensor link length?
>>
>> Keith,
>>
>> To set my adjustable ride height links to the same length as the OEM fixed
>> links, I use a couple of those links as jigs. I've just re-measured their
>> center-to-center lengths: 5.0"
>>
>> If you're going to Shawnee, I'll have the FINAL 10 sets of my adjustable
>> ride height links available. The parts arrived today to finish up the
>> partials I had on hand when I declared "no more". I gave JimK all the
>> relevant part numbers and instruction; I think he's planning to produce
>> them.
>>
>> Ken H.
>>
>>

>>
>> > Can someone measure the length of the lower link, i.e. the link that
>> > connects the control to the sensor?
>> >
>> > I'm trying to do some geometry and I don't have the lower links.
>> >
>> _______________________________________________
>> 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
>>
>
>
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