Home » Public Forums » GMCnet » Remove the brake booster from a '78
| Remove the brake booster from a '78 [message #309269] |
Mon, 24 October 2016 09:45  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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Does anybody know a practical method to remove the booster from a '78??
I have been tasked to remove the booster of the parts coach in my back yard.
After a very short appraisal, this looks like I either have to remove the whole instrument panel or bore holes in it.
I am trying to not destroy any parts that may be of value to someone else.
Thanks
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Remove the brake booster from a '78 [message #309275 is a reply to message #309269] |
Mon, 24 October 2016 09:54  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Matt,
If you carefully cut away the plastic of the dash where it joins the
firewall horizontally beneath the booster, you can reach the lower two
bolts. The missing plastic isn't obvious unless you're laying on the floor.
I don't remember how you get to the upper two bolts on the 77-78 w/o the
removable leveling switch panel.
Ken H.
On Mon, Oct 24, 2016 at 10:45 AM, Matt Colie wrote:
> Does anybody know a practical method to remove the booster from a '78??
>
> I have been tasked to remove the booster of the parts coach in my back
> yard.
> After a very short appraisal, this looks like I either have to remove the
> whole instrument panel or bore holes in it.
> I am trying to not destroy any parts that may be of value to someone else.
>
> Thanks
>
> Matt
> --
> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control Arms
> Now with both true Keyless and remote entry
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Remove the brake booster from a '78 [message #309276 is a reply to message #309275] |
Mon, 24 October 2016 10:01 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Matt,
Here is the pictures on how to get to the bolts on the booster.
and
John
> On Oct 24, 2016, at 10:54 AM, Ken Henderson wrote:
>
> Matt,
>
> If you carefully cut away the plastic of the dash where it joins the
> firewall horizontally beneath the booster, you can reach the lower two
> bolts. The missing plastic isn't obvious unless you're laying on the floor.
>
> I don't remember how you get to the upper two bolts on the 77-78 w/o the
> removable leveling switch panel.
>
> Ken H.
>
>
> On Mon, Oct 24, 2016 at 10:45 AM, Matt Colie wrote:
>
>> Does anybody know a practical method to remove the booster from a '78??
>>
>> I have been tasked to remove the booster of the parts coach in my back
>> yard.
>> After a very short appraisal, this looks like I either have to remove the
>> whole instrument panel or bore holes in it.
>> I am trying to not destroy any parts that may be of value to someone else.
>>
>> Thanks
>>
>> Matt
>> --
>> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
>> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control Arms
>> Now with both true Keyless and remote entry
>> 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
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Remove the brake booster from a '78 [message #309277 is a reply to message #309276] |
Mon, 24 October 2016 10:04 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Read here
http://gmcmotorhome.info/booster.htm
On Monday, October 24, 2016, John Wright wrote:
> Matt,
> Here is the pictures on how to get to the bolts on the booster.
>
> brake-booster-nuts-in-2777-and-2778-gmcs.html>
> and
> brake-booster-nuts-in-2777-and-2778-gmcs.html>
>
> John
>> On Oct 24, 2016, at 10:54 AM, Ken Henderson > wrote:
>>
>> Matt,
>>
>> If you carefully cut away the plastic of the dash where it joins the
>> firewall horizontally beneath the booster, you can reach the lower two
>> bolts. The missing plastic isn't obvious unless you're laying on the
> floor.
>>
>> I don't remember how you get to the upper two bolts on the 77-78 w/o the
>> removable leveling switch panel.
>>
>> Ken H.
>>
>>
>> On Mon, Oct 24, 2016 at 10:45 AM, Matt Colie > wrote:
>>
>>> Does anybody know a practical method to remove the booster from a '78??
>>>
>>> I have been tasked to remove the booster of the parts coach in my back
>>> yard.
>>> After a very short appraisal, this looks like I either have to remove
> the
>>> whole instrument panel or bore holes in it.
>>> I am trying to not destroy any parts that may be of value to someone
> else.
>>>
>>> Thanks
>>>
>>> Matt
>>> --
>>> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
>>> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control
> Arms
>>> Now with both true Keyless and remote entry
>>> 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
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] Remove the brake booster from a '78 [message #309278 is a reply to message #309276] |
Mon, 24 October 2016 10:11 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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The upper two fasteners can be accessed by removing the instrument bezel,
heater controls, and radio. More of a tedious exercise than a difficult
one. Done a few of them. Early coaches can be accessed by removing the
leveling controls. Not a fun job by any means, either way.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Oct 24, 2016 8:02 AM, "John Wright" wrote:
> Matt,
> Here is the pictures on how to get to the bolts on the booster.
>
> brake-booster-nuts-in-2777-and-2778-gmcs.html>
> and
> brake-booster-nuts-in-2777-and-2778-gmcs.html>
>
> John
>> On Oct 24, 2016, at 10:54 AM, Ken Henderson
> wrote:
>>
>> Matt,
>>
>> If you carefully cut away the plastic of the dash where it joins the
>> firewall horizontally beneath the booster, you can reach the lower two
>> bolts. The missing plastic isn't obvious unless you're laying on the
> floor.
>>
>> I don't remember how you get to the upper two bolts on the 77-78 w/o the
>> removable leveling switch panel.
>>
>> Ken H.
>>
>>
>> On Mon, Oct 24, 2016 at 10:45 AM, Matt Colie
> wrote:
>>
>>> Does anybody know a practical method to remove the booster from a '78??
>>>
>>> I have been tasked to remove the booster of the parts coach in my back
>>> yard.
>>> After a very short appraisal, this looks like I either have to remove
> the
>>> whole instrument panel or bore holes in it.
>>> I am trying to not destroy any parts that may be of value to someone
> else.
>>>
>>> Thanks
>>>
>>> Matt
>>> --
>>> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
>>> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control
> Arms
>>> Now with both true Keyless and remote entry
>>> 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
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Remove the brake booster from a '78 [message #309320 is a reply to message #309278] |
Mon, 24 October 2016 17:30 |
Brian Waddell
Messages: 409
Registered: March 2010
Karma: -4
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Senior Member |
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you can get at them from the inside laying on the floor by the accel pedal and reaching in above the 2 bols that were openened up with the removal of a piece of dash....inside the booster is a rubber diaphrame....this can be replaced by a reputable brake shop...so you have all the same parts as before.....brian 77ele 455 near wpg
________________________________
From: Gmclist on behalf of James Hupy
Sent: October 24, 2016 9:11 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Remove the brake booster from a '78
The upper two fasteners can be accessed by removing the instrument bezel,
heater controls, and radio. More of a tedious exercise than a difficult
one. Done a few of them. Early coaches can be accessed by removing the
leveling controls. Not a fun job by any means, either way.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Oct 24, 2016 8:02 AM, "John Wright" wrote:
> Matt,
> Here is the pictures on how to get to the bolts on the booster.
>
> brake-booster-nuts-in-2777-and-2778-gmcs.html>
> and
> brake-booster-nuts-in-2777-and-2778-gmcs.html>
>
> John
>> On Oct 24, 2016, at 10:54 AM, Ken Henderson
> wrote:
>>
>> Matt,
>>
>> If you carefully cut away the plastic of the dash where it joins the
>> firewall horizontally beneath the booster, you can reach the lower two
>> bolts. The missing plastic isn't obvious unless you're laying on the
> floor.
>>
>> I don't remember how you get to the upper two bolts on the 77-78 w/o the
>> removable leveling switch panel.
>>
>> Ken H.
>>
>>
>> On Mon, Oct 24, 2016 at 10:45 AM, Matt Colie
> wrote:
>>
>>> Does anybody know a practical method to remove the booster from a '78??
>>>
>>> I have been tasked to remove the booster of the parts coach in my back
>>> yard.
>>> After a very short appraisal, this looks like I either have to remove
> the
>>> whole instrument panel or bore holes in it.
>>> I am trying to not destroy any parts that may be of value to someone
> else.
>>>
>>> Thanks
>>>
>>> Matt
>>> --
>>> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
>>> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control
> Arms
>>> Now with both true Keyless and remote entry
>>> 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
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
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http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
_______________________________________________
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| Re: [GMCnet] Remove the brake booster from a '78 [message #309321 is a reply to message #309278] |
Mon, 24 October 2016 17:31 |
Brian Waddell
Messages: 409
Registered: March 2010
Karma: -4
|
Senior Member |
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WHAT??????you can reach in there on a 77 ele....brian 77 ele
________________________________
From: Gmclist on behalf of James Hupy
Sent: October 24, 2016 9:11 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Remove the brake booster from a '78
The upper two fasteners can be accessed by removing the instrument bezel,
heater controls, and radio. More of a tedious exercise than a difficult
one. Done a few of them. Early coaches can be accessed by removing the
leveling controls. Not a fun job by any means, either way.
Jim Hupy
Salem, Or
78 GMC ROYALE 403
On Oct 24, 2016 8:02 AM, "John Wright" wrote:
> Matt,
> Here is the pictures on how to get to the bolts on the booster.
>
> brake-booster-nuts-in-2777-and-2778-gmcs.html>
> and
> brake-booster-nuts-in-2777-and-2778-gmcs.html>
>
> John
>> On Oct 24, 2016, at 10:54 AM, Ken Henderson
> wrote:
>>
>> Matt,
>>
>> If you carefully cut away the plastic of the dash where it joins the
>> firewall horizontally beneath the booster, you can reach the lower two
>> bolts. The missing plastic isn't obvious unless you're laying on the
> floor.
>>
>> I don't remember how you get to the upper two bolts on the 77-78 w/o the
>> removable leveling switch panel.
>>
>> Ken H.
>>
>>
>> On Mon, Oct 24, 2016 at 10:45 AM, Matt Colie
> wrote:
>>
>>> Does anybody know a practical method to remove the booster from a '78??
>>>
>>> I have been tasked to remove the booster of the parts coach in my back
>>> yard.
>>> After a very short appraisal, this looks like I either have to remove
> the
>>> whole instrument panel or bore holes in it.
>>> I am trying to not destroy any parts that may be of value to someone
> else.
>>>
>>> Thanks
>>>
>>> Matt
>>> --
>>> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
>>> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control
> Arms
>>> Now with both true Keyless and remote entry
>>> 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
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
_______________________________________________
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| Re: [GMCnet] Remove the brake booster from a '78 [message #309331 is a reply to message #309321] |
Mon, 24 October 2016 19:44 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
|
Senior Member |
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Yes
I've done it on my 77 Kingsley.
If I remember right I used a u-joint on my socket wrench.
Emery Stora
> On Oct 24, 2016, at 4:31 PM, Brian Waddell wrote:
>
> WHAT??????you can reach in there on a 77 ele....brian 77 ele
>
>
> ________________________________
> From: Gmclist on behalf of James Hupy
> Sent: October 24, 2016 9:11 AM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Remove the brake booster from a '78
>
> The upper two fasteners can be accessed by removing the instrument bezel,
> heater controls, and radio. More of a tedious exercise than a difficult
> one. Done a few of them. Early coaches can be accessed by removing the
> leveling controls. Not a fun job by any means, either way.
> Jim Hupy
> Salem, Or
> 78 GMC ROYALE 403
>
>> On Oct 24, 2016 8:02 AM, "John Wright" wrote:
>>
>> Matt,
>> Here is the pictures on how to get to the bolts on the booster.
>>
>> > brake-booster-nuts-in-2777-and-2778-gmcs.html>
>> and
>> > brake-booster-nuts-in-2777-and-2778-gmcs.html>
>>
>> John
>>> On Oct 24, 2016, at 10:54 AM, Ken Henderson
>> wrote:
>>>
>>> Matt,
>>>
>>> If you carefully cut away the plastic of the dash where it joins the
>>> firewall horizontally beneath the booster, you can reach the lower two
>>> bolts. The missing plastic isn't obvious unless you're laying on the
>> floor.
>>>
>>> I don't remember how you get to the upper two bolts on the 77-78 w/o the
>>> removable leveling switch panel.
>>>
>>> Ken H.
>>>
>>>
>>> On Mon, Oct 24, 2016 at 10:45 AM, Matt Colie
>> wrote:
>>>
>>>> Does anybody know a practical method to remove the booster from a '78??
>>>>
>>>> I have been tasked to remove the booster of the parts coach in my back
>>>> yard.
>>>> After a very short appraisal, this looks like I either have to remove
>> the
>>>> whole instrument panel or bore holes in it.
>>>> I am trying to not destroy any parts that may be of value to someone
>> else.
>>>>
>>>> Thanks
>>>>
>>>> Matt
>>>> --
>>>> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
>>>> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control
>> Arms
>>>> Now with both true Keyless and remote entry
>>>> 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
>>
>>
>> _______________________________________________
>> 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
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| Re: [GMCnet] Remove the brake booster from a '78 [message #309348 is a reply to message #309331] |
Mon, 24 October 2016 22:29 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
|
Senior Member |
|
|
emerystora wrote on Mon, 24 October 2016 19:44Yes
I've done it on my 77 Kingsley.
If I remember right I used a u-joint on my socket wrench.
Emery Stora
Same here. I was able to replace the booster on my 1976 Palm Beach WITHOUT having to cut anything. As I remember I used 1/4" drive u-joint socket and also an appropriate size 12 point box end.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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