Service Bulletins and Recalls

[james h. & norma m. shannon]

Emery,
We would appreciate more info. Esp. the spindle dia. to check if my '74 has had
the recall. TIA
J & N '74 TZE064V100009

> The question had come up as to whether there had been a bulletin or recall
> about the change of airbag cones from fiberglass to aluminum. As far as I
> can tell there never was. It was just a production substitution.
>
> I purchased a book from Cinnabar in 1994 that has all of the GMC Motorhome
> Service Bulletins and Recalls up to that time. It is X-0021. Perhaps
> someone can advise if there have been any after that time.
>
> There are a total of 148 Motorhome Service Bulletins and 9 Recalls.
>
> The recalls are as follows:
>
> Year issued
> 74-C-1 1973 ZE033 and ZE063
> (Rubber tee in fuel line, seatbelts, brake pedal)
> 1973
> 74-C-05 Radial Tire (1973 and 1974 ZEO50000) 1974
> 74-C-07 1973 and 1974 ZEO5000 Motorhomes
> (rear wheel bearings and accelerator linkage)
> 1974
> 75 Special Type II Suburban Furnaces
> (certain 1973 & 74ZE05000 motorhomes)
> 1975
> 75-C-08 Preheat Hose Connection Tube Assembly
> (1973-75 with water hearer preheater)
> 1975
> 76-C-03 Lower Steering Shaft Assembly (TZE166V,
> 336V and 366V MH and
> TransMode) 1976
> 77-C-13 6.0 KW Onan Generator Possible 110V AC conduit
> interference with + battery
> Stud 1977
> 78-C-05 TransMode Seatbelt Assemblies
> (1978 ZEO06583 and ZEO06083)
> 1978
> 81-Special 8.75R16.5LT Load Range D Tires 1981
>
> It is my understanding that if your motorhome has never had the recall
> performed, there is no time limit and Cinnabar (or others) must still perform
> the service under the recall. For those of you who own a 73 or 74, the
> recall 74-C-07 involves all new larger diameter spindles and bearings,
> backing plates, brake assemblies and the hub and drum assembly.for the rear
> suspension. If you don't know if this has been done have it checked out.
> You can tell by the diameter of the spindle.
>
> If anyone has specific questions I'll be happy to look up the data in the
> book.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM

 

[david l greenberg]

There was also a letter from Suburban dtd 2/15/75 regarding corrosion
related stress on some brass couplings. Furnaces were mods NT22 and NT32
with Serial numbers between 0282292 and 0364780.

If anyone needs more info pls let me know.

David Lee Greenberg
GMC Motorhome Registry
and Boston Homes, Inc.
800-827-9989

 

[james h. & norma m. shannon]

Emery,
thanks for the info!!
Jim S.

>
> >
>
> I have a 1977 so I hadn't read the recall all that well. I looked at it and
> the gist of it is that all GMC Motorhomes shipped prior to May 1, 1974 (up to
> serial number 4V101024) are subject to the recall. The main change is to
> update the rear pivot arms from a 1-1/4" to a 1-1/2" bushing size at the main
> bracket (the bracket that the arms pivot on which is also the jacking point.)
> The parts listed for the recall are rear spindles, bolts washers, nuts, LH
> and RH Brake Assembly, hub seals, inner bearings, hub & drum assembly, outer
> cone and roller bearing,
>
> It appears that if your GMC never had the recall performed you'll get new
> brakes & brake drums and possibly even new suspension arms. It appears that
> you should measure the bushings where the two arms pivot to see their size.
> You might also call GM or an authorized service center such as Cinnabar to
> see if records indicate that the modification has been made to your GMC.
> Note that the records could be incorrect so a physical inspection should be
> made. I don't know if its ever happened regarding a GMC motorhome but there
> have actually been cases for some car manufacturers where dealers have
> reported repairs under a recall, collected the payment from the manufacturer
> and never made the repairs.
>
> The recall states: "Dealers are to service all vehicles subject to this
> campaign regardless of the mileage, age of vehicle, or owner. " I believe
> that the Federal law requires no deadline on the repairs so the recall should
> still be in effect.
>
> Emery Stora
> 77 Kingsley
> Santa Fe, NM