Anybody out there know what the diameter of the stock air bag is?
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
Diameter of stock Air bags
- Thread starter LarryW
- Start date
Larry. It kinda varies by inflation a little. Do you want me to send you a spare one for testing? Could speedy it monday?
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
> Larry. It kinda varies by inflation a little. Do you want me to send you a spare one for testing? Could speedy it monday?
No Jon, I don't need another bag, at least not the stock bag. Just doing some relative pressure comparisons with different diameter bags. Trying to
decide what bag to use on the Harrison system I got. Thanks anyway. Just need to know what stock bag diameter is.
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
No Jon, I don't need another bag, at least not the stock bag. Just doing some relative pressure comparisons with different diameter bags. Trying to
decide what bag to use on the Harrison system I got. Thanks anyway. Just need to know what stock bag diameter is.
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
> sent you a PM with the specs....
Thanks, email sent.
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
Thanks, email sent.
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
Larry,
Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
Now able to get to my parts and tech manuals.
The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325. This bag is slightly larger that the original air spring but will fit.
I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
Regards,
J.R. Wright
GMC Great Laker MHC
GMCGL Tech Editor
GMC Eastern States Charter Member
GMCMI
78 GMC Buskirk 29.5’ Stretch
75 GMC Avion (Under Reconstruction)
Michigan
Home again!
>
>> sent you a PM with the specs....
>
> Thanks, email sent.
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
Now able to get to my parts and tech manuals.
The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325. This bag is slightly larger that the original air spring but will fit.
I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
Regards,
J.R. Wright
GMC Great Laker MHC
GMCGL Tech Editor
GMC Eastern States Charter Member
GMCMI
78 GMC Buskirk 29.5’ Stretch
75 GMC Avion (Under Reconstruction)
Michigan
Home again!
>
>> sent you a PM with the specs....
>
> Thanks, email sent.
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Mr Wright Sir, I have some question about this stuff that i would like to pick your brain about but i see you are not excepting PM's...how does wone
contact you?
> Larry,
> Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
>
> I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago
> before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
>
> Now able to get to my parts and tech manuals.
>
> The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325.
> This bag is slightly larger that the original air spring but will fit.
>
> I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
>
> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
>
> Regards,
>
> J.R. Wright
> GMC Great Laker MHC
> GMCGL Tech Editor
> GMC Eastern States Charter Member
> GMCMI
> 78 GMC Buskirk 29.5’ Stretch
> 75 GMC Avion (Under Reconstruction)
> Michigan
> Home again!
>
>
> >
> >> sent you a PM with the specs....
> >
> > Thanks, email sent.
> > --
> > Larry
> > 78 Royale w/500 Caddy
> > Menomonie, WI.
> >
> > _______________________________________________
> > 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
--
Rich Mondor,
Brockville, ON
77 Hughes 2600
contact you?
> Larry,
> Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
>
> I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago
> before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
>
> Now able to get to my parts and tech manuals.
>
> The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325.
> This bag is slightly larger that the original air spring but will fit.
>
> I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
>
> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
>
> Regards,
>
> J.R. Wright
> GMC Great Laker MHC
> GMCGL Tech Editor
> GMC Eastern States Charter Member
> GMCMI
> 78 GMC Buskirk 29.5’ Stretch
> 75 GMC Avion (Under Reconstruction)
> Michigan
> Home again!
>
>
> >
> >> sent you a PM with the specs....
> >
> > Thanks, email sent.
> > --
> > Larry
> > 78 Royale w/500 Caddy
> > Menomonie, WI.
> >
> > _______________________________________________
> > 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
--
Rich Mondor,
Brockville, ON
77 Hughes 2600
> I have some question about this stuff that i would like to pick your
> brain about but i see you are not excepting PM's...how does wone
> contact you?
Maybe just use the regular forum. I am sure others love to see questions
and answers as well
--
Best regards
Olly Schmidt
PGP KeyID: 0x4196BF22
'76a 26' Eleganza II - Virginia, US
'73 23' Sequoia - Schleswig-Holstein, Germany
> brain about but i see you are not excepting PM's...how does wone
> contact you?
Maybe just use the regular forum. I am sure others love to see questions
and answers as well
--
Best regards
Olly Schmidt
PGP KeyID: 0x4196BF22
'76a 26' Eleganza II - Virginia, US
'73 23' Sequoia - Schleswig-Holstein, Germany
I am out doing stuff needed to get mail and food today, I can be reached later in the day after 4 pm EST at 9eight9-8five9-zero4nine6. Will repost our conversation later. If I do not pickup then leave message with your phone number and I will call you back.
JR
>
>> I have some question about this stuff that i would like to pick your
>> brain about but i see you are not excepting PM's...how does wone
>> contact you?
>
> Maybe just use the regular forum. I am sure others love to see questions
> and answers as well
>
> --
> Best regards
>
> Olly Schmidt
> PGP KeyID: 0x4196BF22
> '76a 26' Eleganza II - Virginia, US
> '73 23' Sequoia - Schleswig-Holstein, Germany
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
JR
>
>> I have some question about this stuff that i would like to pick your
>> brain about but i see you are not excepting PM's...how does wone
>> contact you?
>
> Maybe just use the regular forum. I am sure others love to see questions
> and answers as well
>
> --
> Best regards
>
> Olly Schmidt
> PGP KeyID: 0x4196BF22
> '76a 26' Eleganza II - Virginia, US
> '73 23' Sequoia - Schleswig-Holstein, Germany
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> > I have some question about this stuff that i would like to pick your
> > brain about but i see you are not excepting PM's...how does wone
> > contact you?
>
> Maybe just use the regular forum. I am sure others love to see questions
> and answers as well
This^^^. Agreed.
--
Shawn Harris
North Vancouver,
Canada
1977 Palm Beach 403
> > brain about but i see you are not excepting PM's...how does wone
> > contact you?
>
> Maybe just use the regular forum. I am sure others love to see questions
> and answers as well
This^^^. Agreed.
--
Shawn Harris
North Vancouver,
Canada
1977 Palm Beach 403
> Larry,
> Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
>
> I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago
> before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
>
> Now able to get to my parts and tech manuals.
>
> The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325.
> This bag is slightly larger that the original air spring but will fit.
>
> I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
>
> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
>
> Regards,
>
> J.R. Wright
> GMC Great Laker MHC
> GMCGL Tech Editor
> GMC Eastern States Charter Member
> GMCMI
> 78 GMC Buskirk 29.5’ Stretch
> 75 GMC Avion (Under Reconstruction)
> Michigan
> Home again!
Thanks for the info JR. Just what I needed.
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
> Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
>
> I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago
> before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
>
> Now able to get to my parts and tech manuals.
>
> The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325.
> This bag is slightly larger that the original air spring but will fit.
>
> I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
>
> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
>
> Regards,
>
> J.R. Wright
> GMC Great Laker MHC
> GMCGL Tech Editor
> GMC Eastern States Charter Member
> GMCMI
> 78 GMC Buskirk 29.5’ Stretch
> 75 GMC Avion (Under Reconstruction)
> Michigan
> Home again!
Thanks for the info JR. Just what I needed.
--
Larry
78 Royale w/500 Caddy
Menomonie, WI.
Larry,
If you go to: truckspring.com/products/Firestone-Double-Convoluted-Air-Spring-26C-Style-14-NPT_W21-760-7325.aspx You can find the tech and drawing for that air spring.
JR
>
>> Larry,
>> Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
>>
>> I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago
>> before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
>>
>> Now able to get to my parts and tech manuals.
>>
>> The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325.
>> This bag is slightly larger that the original air spring but will fit.
>>
>> I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
>>
>> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
>>
>> Regards,
>>
>> J.R. Wright
>> GMC Great Laker MHC
>> GMCGL Tech Editor
>> GMC Eastern States Charter Member
>> GMCMI
>> 78 GMC Buskirk 29.5’ Stretch
>> 75 GMC Avion (Under Reconstruction)
>> Michigan
>> Home again!
>
> Thanks for the info JR. Just what I needed.
>
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
If you go to: truckspring.com/products/Firestone-Double-Convoluted-Air-Spring-26C-Style-14-NPT_W21-760-7325.aspx You can find the tech and drawing for that air spring.
JR
>
>> Larry,
>> Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
>>
>> I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago
>> before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
>>
>> Now able to get to my parts and tech manuals.
>>
>> The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325.
>> This bag is slightly larger that the original air spring but will fit.
>>
>> I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
>>
>> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
>>
>> Regards,
>>
>> J.R. Wright
>> GMC Great Laker MHC
>> GMCGL Tech Editor
>> GMC Eastern States Charter Member
>> GMCMI
>> 78 GMC Buskirk 29.5’ Stretch
>> 75 GMC Avion (Under Reconstruction)
>> Michigan
>> Home again!
>
> Thanks for the info JR. Just what I needed.
>
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
One other thing, that bag could be used in the “Quada Bag system!
JR
>
>> Larry,
>> Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
>>
>> I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago
>> before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
>>
>> Now able to get to my parts and tech manuals.
>>
>> The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325.
>> This bag is slightly larger that the original air spring but will fit.
>>
>> I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
>>
>> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
>>
>> Regards,
>>
>> J.R. Wright
>> GMC Great Laker MHC
>> GMCGL Tech Editor
>> GMC Eastern States Charter Member
>> GMCMI
>> 78 GMC Buskirk 29.5’ Stretch
>> 75 GMC Avion (Under Reconstruction)
>> Michigan
>> Home again!
>
> Thanks for the info JR. Just what I needed.
>
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
JR
>
>> Larry,
>> Just got back from AZ last night, 4 days and 3 nights of adventure to get home.
>>
>> I used to have a Harrison rear system on the 77 GMC that we first owned and I researched these numbers from Leigh Harrison a number of years ago
>> before he passed. I do have the part numbers for the rotors too. They are available and are not that costly and was easier to just replace them.
>>
>> Now able to get to my parts and tech manuals.
>>
>> The original Harrison air spring was a Firestone A01-760-0335 and is very hard to find. An acceptable replacement is a Firestone W21-760-7325.
>> This bag is slightly larger that the original air spring but will fit.
>>
>> I have also attached an album that show the Harrison system and a comparison of the Harrison rotor and the Cad rotor.
>>
>> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
>>
>> Regards,
>>
>> J.R. Wright
>> GMC Great Laker MHC
>> GMCGL Tech Editor
>> GMC Eastern States Charter Member
>> GMCMI
>> 78 GMC Buskirk 29.5’ Stretch
>> 75 GMC Avion (Under Reconstruction)
>> Michigan
>> Home again!
>
> Thanks for the info JR. Just what I needed.
>
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
John, The Quadra bag system uses anothe model than Harrison.
We stock the bags for Harrison as well as all parts for GMC MH.
On Sat, May 9, 2020 at 11:36 AM John Wright via Gmclist <
> One other thing, that bag could be used in the “Quada Bag system!
>
> JR
> > On May 9, 2020, at 2:00 PM, Larry via Gmclist
> >
> >> Larry,
> >> Just got back from AZ last night, 4 days and 3 nights of adventure to
> get home.
> >>
> >> I used to have a Harrison rear system on the 77 GMC that we first owned
> and I researched these numbers from Leigh Harrison a number of years ago
> >> before he passed. I do have the part numbers for the rotors too. They
> are available and are not that costly and was easier to just replace them.
> >>
> >> Now able to get to my parts and tech manuals.
> >>
> >> The original Harrison air spring was a Firestone A01-760-0335 and is
> very hard to find. An acceptable replacement is a Firestone W21-760-7325.
> >> This bag is slightly larger that the original air spring but will fit.
> >>
> >> I have also attached an album that show the Harrison system and a
> comparison of the Harrison rotor and the Cad rotor.
> >>
> >>
> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
> >>
> >> Regards,
> >>
> >> J.R. Wright
> >> GMC Great Laker MHC
> >> GMCGL Tech Editor
> >> GMC Eastern States Charter Member
> >> GMCMI
> >> 78 GMC Buskirk 29.5’ Stretch
> >> 75 GMC Avion (Under Reconstruction)
> >> Michigan
> >> Home again!
> >
> > Thanks for the info JR. Just what I needed.
> >
> > --
> > Larry
> > 78 Royale w/500 Caddy
> > Menomonie, WI.
> >
> > _______________________________________________
> > 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
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
We stock the bags for Harrison as well as all parts for GMC MH.
On Sat, May 9, 2020 at 11:36 AM John Wright via Gmclist <
> One other thing, that bag could be used in the “Quada Bag system!
>
> JR
> > On May 9, 2020, at 2:00 PM, Larry via Gmclist
> >
> >> Larry,
> >> Just got back from AZ last night, 4 days and 3 nights of adventure to
> get home.
> >>
> >> I used to have a Harrison rear system on the 77 GMC that we first owned
> and I researched these numbers from Leigh Harrison a number of years ago
> >> before he passed. I do have the part numbers for the rotors too. They
> are available and are not that costly and was easier to just replace them.
> >>
> >> Now able to get to my parts and tech manuals.
> >>
> >> The original Harrison air spring was a Firestone A01-760-0335 and is
> very hard to find. An acceptable replacement is a Firestone W21-760-7325.
> >> This bag is slightly larger that the original air spring but will fit.
> >>
> >> I have also attached an album that show the Harrison system and a
> comparison of the Harrison rotor and the Cad rotor.
> >>
> >>
> http://www.gmcmhphotos.com/photos/g5661-disk-brake-upgrade-leigh-harrison-brakes.html
> >>
> >> Regards,
> >>
> >> J.R. Wright
> >> GMC Great Laker MHC
> >> GMCGL Tech Editor
> >> GMC Eastern States Charter Member
> >> GMCMI
> >> 78 GMC Buskirk 29.5’ Stretch
> >> 75 GMC Avion (Under Reconstruction)
> >> Michigan
> >> Home again!
> >
> > Thanks for the info JR. Just what I needed.
> >
> > --
> > Larry
> > 78 Royale w/500 Caddy
> > Menomonie, WI.
> >
> > _______________________________________________
> > 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
>
--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
