Home » Public Forums » GMCnet » What are these plates?
| What are these plates? [message #357524] |
Thu, 06 August 2020 13:25  |
aglass0fmilk
Messages: 10
Registered: July 2016
Location: Buffalo, NY
Karma: 1
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Junior Member |
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Hey all,
Currently in the middle of a frame-off restoration of my grandfather’s 1973 GMC MotorHome. Ordered a new Stuckey frame but COVID has made getting it into the US quite a chore 
I’m looking at the parts book frame section and on my (relatively early) coach there are three extra plates that span the front two crossmembers. These don’t appear in the parts book diagram. Maybe they’re the unshown “dinette seat belt brackets” mentioned in the parts list?
See attached picture:
[Updated on: Thu, 06 August 2020 13:34] Report message to a moderator |
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| Re: [GMCnet] What are these plates? [message #357525 is a reply to message #357524] |
Thu, 06 August 2020 13:54  |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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No pic
Email user.
Sully
Bellevue wa
On Thu, Aug 6, 2020 at 11:26 AM Don B via Gmclist
wrote:
> Hey all,
>
> Currently in the middle of a frame-off restoration of my grandfather’s
> 1973 GMC MotorHome. Ordered a new Stuckey frame but COVID has made getting
> it
> into the US quite a chore :?
>
>
> I’m looking at the parts book frame section and on my (relatively early)
> coach there are three extra plates that span the front two crossmembers.
> These don’t appear in the parts book diagram. Maybe they’re the unshown
> “dinette seat belt brackets” mentioned in the parts list?
>
> See attached picture:
>
>
> _______________________________________________
> GMCnet mailing list
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: What are these plates? [message #357555 is a reply to message #357524] |
Fri, 07 August 2020 15:17 |
Russell K.
Messages: 178
Registered: October 2016
Location: Dunedin, Florida
Karma: 4
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Senior Member |
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Don,
I don't have those on my '78 26' coach, but it looks like part numbers 711516 and 711517 bracket assemblies - dinette seat belt anchors, described in the parts manual are only for the 23' coaches. You're probably right, yours is a 23', isn't it?. Good luck with the restoration.
Russell
1978 Eleganza II, Dunedin, Florida
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| Re: [GMCnet] What are these plates? [message #357560 is a reply to message #357555] |
Fri, 07 August 2020 18:44 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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I don’t recall those on either of my 77. 26’
Sully
Bellevue wa
On Fri, Aug 7, 2020 at 1:18 PM Russell Keith via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Don,
> I don't have those on my '78 26' coach, but it looks like part numbers
> 711516 and 711517 bracket assemblies - dinette seat belt anchors, described
> in
> the parts manual are only for the 23' coaches. You're probably right,
> yours is a 23', isn't it?. Good luck with the restoration.
>
> Russell
> --
> Russell Keith,
> 1978 E2 "Harry" 403 (still carbureted), Danny Dunn Tranny, Thorley, Stock
> Brakes w/Remote Vacuum Brake Booster, Quad Bags, Dakota Digital Dash, 6.5 kW
> Onan, Dunedin, Florida
>
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: What are these plates? [message #357572 is a reply to message #357524] |
Sat, 08 August 2020 07:50 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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This is from an old thread re frame differences and may be the answer to your plate question. If you still have the build sheet for your 1973 or if you have a glove box sheet you may find this option listed.
Per David Greenberg, originator of the GMC Registry
"There was a base frame reinforcement option introduced at/around
TZE063V100860 RPO F11403 Also, 1978 models had gussets added to the chassis
to increase capacity."
Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: What are these plates? [message #357580 is a reply to message #357576] |
Sat, 08 August 2020 14:28 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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You should visit bdub.net for comprehensive GMC information.
I found this frame drawing in the 1974 brochure and it shows the three plates.
http://www.bdub.net/publications/1974_GMC_Motorhome/1974_GMC_Motorhome_Offerings15.html
But the plates don’t show in the 1973 brochure.
http://www.bdub.net/publications/1973%20GMC%20Motorhome/1973_GMC19.htm
Dennis
aglass0fmilk wrote on Sat, 08 August 2020 10:50I have a partial build sheet (a corner has been lost to the ages) and the glovebox sticker is still there. The whole coach is gutted at the moment though so I’d have to go dig it out of the garage.
My GMC is a relatively early 73 26 foot. My grandfather bought it brand new back in 73 and it was in active service until around 2001. I took a few trips in it as a child and loved it. I’m now in my 20’s and want to get it back on the road.
The VIN is TZE063V102222
Is there a comprehensive catalog of factory options somewhere? I love reading about that kind of stuff. I’m very into restoring classic cars and enjoy all the lore around vehicles.
Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] What are these plates? [message #357588 is a reply to message #357576] |
Sat, 08 August 2020 17:13 |
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Beckstein? Osprey, FL, prior in Snyder, NY? Build date 9/6/1973?
Please, for the purpose of locating and keeping track of all Classic GMC
Motorhomes.
Please fill out and submit the online form at www.gmcmhregistry.com
There are currently over 8460 GMCs accounted for.
* Note about the Build Date of your GMC: From the decal on the inside of
the glove box door - look for a number on the top line just left of center,
similar to "032174". The example indicates the build date as March 21st,
1974. *
bdub
On Sat, Aug 8, 2020 at 10:51 AM Don B via Gmclist
wrote:
> I have a partial build sheet (a corner has been lost to the ages) and the
> glovebox sticker is still there. The whole coach is gutted at the moment
> though so I’d have to go dig it out of the garage.
>
> My GMC is a relatively early 73 26 foot. My grandfather bought it brand
> new back in 73 and it was in active service until around 2001. I took a few
> trips in it as a child and loved it. I’m now in my 20’s and want to get it
> back on the road.
>
> The VIN is TZE063V102222
>
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bdub
bdub.net
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| Re: [GMCnet] What are these plates? [message #357590 is a reply to message #357588] |
Sat, 08 August 2020 18:56 |
aglass0fmilk
Messages: 10
Registered: July 2016
Location: Buffalo, NY
Karma: 1
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Junior Member |
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Billy Massey wrote on Sat, 08 August 2020 17:13Beckstein? Osprey, FL, prior in Snyder, NY? Build date 9/6/1973?
Please, for the purpose of locating and keeping track of all Classic GMC
Motorhomes.
Please fill out and submit the online form at www.gmcmhregistry.com
There are currently over 8460 GMCs accounted for.
* Note about the Build Date of your GMC: From the decal on the inside of
the glove box door - look for a number on the top line just left of center,
similar to "032174". The example indicates the build date as March 21st,
1974. *
bdub
On Sat, Aug 8, 2020 at 10:51 AM Don B via Gmclist
wrote:
> I have a partial build sheet (a corner has been lost to the ages) and the
> glovebox sticker is still there. The whole coach is gutted at the moment
> though so I’d have to go dig it out of the garage.
>
> My GMC is a relatively early 73 26 foot. My grandfather bought it brand
> new back in 73 and it was in active service until around 2001. I took a few
> trips in it as a child and loved it. I’m now in my 20’s and want to get it
> back on the road.
>
> The VIN is TZE063V102222
>
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Yep, that’s us! My grandmother Catherine “Kitty” Beckstein was the primary owner after my grandfather passed away in 1980. She was an avid GMCer until she passed away in 2001. She was even president of a club, Heritage Cruisers. We have a plaque with a little golden GMC hot wheels on it with her title. I wonder if anyone on here would’ve known her...
I will snap a picture of the glovebox sticker tomorrow so I have that info.
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| Re: What are these plates? [message #357596 is a reply to message #357524] |
Sat, 08 August 2020 22:55 |
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John Heslinga
Messages: 632
Registered: February 2011
Location: Edmonton, Alberta, Canada
Karma: 4
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Senior Member |
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I have a 1974 Coach and I have those plates Too. (26-6 floor plan) They are there for the seat belts for the door side (Rear) of the main dinette. You will notice that the cross member is not in the right place for a seat belt anchor. The one closer to the center Is for the sinner seat position of that same dinette seat.
The One on the driver side is for the second single dinette (Bed) that was one of the floor plans available ( Mine was) Again, the seat belt anchors to about the center of those plates.
26-4 26-5 and26-6 Had the single bed and dinette in the floor plan.
But I suspect the barrel Chair options may have had the same anchor plates.
Best Regards
John
John and Cathie Heslinga
1974 Canyonlands 260
455, Manny tranny and 1 ton, 3:70 LS,
Red Seal Journeyman, DTE, BEd. MEd.
Edmonton, Alberta
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| Re: What are these plates? [message #357599 is a reply to message #357524] |
Sun, 09 August 2020 08:25 |
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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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Don,
We are really glad to be of what assistance we can, but please fill in a sigfile. When you have a little time, go to <Control Panel/Account Settings> and then click on preferences. Find the place to fill in a sigfile. Put in your real name (we like to know who we helped when we meet), a short bit about the family coach - include major mods because it may matter and a geographic reference because the half that read this as e-mail won't see the Buffalo. Then scroll down to <update> This will make it easier to get the good answers here.
73s were the first year and they (I should know)a collection of special situations that you should be aware of before you get too far. Because of the early production, there are a few suggested mods that you should pursue early on. Not the least of which would be to replace the points with Pertronix 1181LS. If someone tells you to change it to HEI, be ready to carry a whole set of spares for that and pummle the air filter housing into submission.
There are a number of owners not far from you and just by being here, you may attract some attention. They can be valuable just as native guides.
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: What are these plates? [message #357604 is a reply to message #357524] |
Sun, 09 August 2020 15:53 |
bryant374
Messages: 563
Registered: May 2004
Location: Pleasant Valley, NY 12569
Karma: 1
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Senior Member |
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Back a number of years ago Dave Greenburg and I traded information many times trying to solve the many unknowns at that time (there were many). The "Base fram Reinf spe" as was shown on the Service Parts Information (glove box sticker) was one of those mysteries that we were not able to solve correctly. I believe with the present questions about "the extra brackets for seat belts" you have now nailed it.
Here is a little history as I know it:
The EARLIEST 1973 GMC MH I have listed with the Base Frame Reinforcement is TZE063V102060. (Date 082373). If you know of an EARLIER 1973 TZE number please let me know what that TZE is (hopefully with a copy of that GB sticker).
The LATEST 1974 GMC MH I have listed with the Base Frame Reinforcement is TZE064V101133 and I suspect these continued thru the end of the 1974 model year (I don't have data on later 1974 models, again if you have a later 1974 with the BFR, same as above).
Starting with first of 1975 models (built starting 07-1974) and all years beyond, the Base Frame Reinforcement ID goes away. Many changes were made at that time for the 1975 model and I believe this likely was one of them.
In looking at the Glove Box sticker for the period of 08-73 through 07-74 look under "options" for:
23'- F10404
26'- F11403
Helpful feedback appreciated,
Bill
Bill Bryant
PO 1976~PB (owned 34 years)
1914 Ford (owned 70 years)
1965 Corvette (owned 39 years)
GMC Motorhome History
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| Re: What are these plates? [message #357614 is a reply to message #357613] |
Sun, 09 August 2020 21:36 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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Sir, I also had issues with posting pics to the photo site in about the same time span as you. In my case I found if I open the photo site on my older Galaxy Samsung phone and sign in and post pictures directly from my phone they will go and can post up to 6 pics at a time. If I send the pics to myself thru email or message and save them to my Win 10 or Apple Safari they will not load saying pics are to big.
pjburt wrote on Sun, 09 August 2020 21:57Grrr I haven't been able to post photos on the photo site for 2 years. I give up.
Here is an image of my glove box sticker on my own site.
http://jburtphotos.com/images/GMC-Pix/73-Options.jpg
C. Boyd
76 Crestmont
East Tennessee
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| Re: What are these plates? [message #357615 is a reply to message #357524] |
Sun, 09 August 2020 23:07 |
Adrien G.
Messages: 474
Registered: May 2008
Location: Burns Flat, OK 73624
Karma: 1
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Senior Member |
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aglass0fmilk wrote on Thu, 06 August 2020 11:25Hey all,
Currently in the middle of a frame-off restoration of my grandfather’s 1973 GMC MotorHome. Ordered a new Stuckey frame but COVID has made getting it into the US quite a chore
I’m looking at the parts book frame section and on my (relatively early) coach there are three extra plates that span the front two crossmembers. These don’t appear in the parts book diagram. Maybe they’re the unshown “dinette seat belt brackets” mentioned in the parts list?
See attached picture:
You can make your won frame rails, I don't know what your tool suply is like, this is what I did to make rails for mine.
1. At a steel supplier buy a 6 x 6 x .187 wall square tube the length you need.
2. Need to rip cut the tube into 2 channel. I used a Skill saw with carburandum thin blades from a welding supplier or home depot or ???
3. After old frame is disassembled choose the best rail and clamp it back to back to the new rail. With a transfer punch mark center of all the required holes.
4. Unclamp the old rail, and drill pilot ( 1/8 or 3/16 ) with drill press or by hand, make certain to be on center.
5. Clamp the 2 new rails back to back, transfer pilot holes and proceed however you can to the 1/2" ( .500 ) size required, in steps or directly.
6. Clean rails of burrs, rust, or ?. Paint or powder coat or ? your need for your area.
Hope that this can help you. I had to deal with cross members in the sub frame also.
Adrien & Jenny Genesoto
75 Glenbrook (26-3) Mods LS3.70 FD / Reaction Sys / 80mm Front&Intermidiate / Hydroboost / 16" Tires / Frame Rebuild / Interior Rebuild
Yuba City,Ca. Text 530-nine-3-three-3-nine-nine-6
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