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View Full Version : 1966 GMC 1 ton Dully rear drum

Wildchild
March 17th, 2013, 01:24 AM
I need, and can not find a rear drum for my 66 GMC 1 ton. 8 bolt. Can anyone help me out in locating a new or good used drum?
raycow
March 17th, 2013, 12:33 PM
Does your drum look like this? Check your dimensions carefully before ordering unless you can do a physical match-up.
http://www.rockauto.com/catalog/moreinfo.php?pk=1610532&cc=1419432

Ray
Wildchild
March 18th, 2013, 04:59 AM
Thanx the RockAuto Parts store had the correct dimentions for my drum. I orderd the drum and will hopefully see it soon. Thanx again!!!!
raycow
March 18th, 2013, 08:00 AM
Thank you for the feedback. Please post again when the drum gets to you and you actually try it on the truck. I think this board has an interchange list somewhere for parts that are hard to find and we might want to put it on there. Maybe one of the moderators can tell us where it is.

Ray
Wildchild
March 18th, 2013, 02:57 PM
Thats a good idea. I will let you know when I get the drum and if it fits. There is no listing for the rear drums here at any of the parts stores. Thanx.
FetchMeAPepsi
March 18th, 2013, 03:14 PM
Thers a thread here that talks about interchanging parts but it might be good to have one in every section like interiors, engine, etc that is at the top of every forum. http://6066gmcclub.com/forum/showthread.php?t=47319&highlight=jeep

whatcha think Jeannie?
Wildchild
March 28th, 2013, 04:28 AM
Thanx for the help. The drum I orderd is the correct drum.
raycow
March 28th, 2013, 04:13 PM
The drum I orderd is the correct drum.

That's great news! Thank you for your very helpful feedback.

Now I have a confession to make. That drum is shown as fitting a Chev C-30. I did not find a listing for GMC. I suspected it might work because both trucks use the same H072 rear axle, but that was no guarantee that the brakes would be the same.

So once again I have to ask, is there someplace on this forum where parts interchange info can be saved?

Ray
Wildchild
March 29th, 2013, 02:38 AM
Not sure if there is a forume where parts interchange info can be saved. I am having difficulty starting a new post. Can't seem to find where to start one. I am trying to remove the heater core and am having problems. I have removed the screws under the cover as well as the outside screws and am unable to remove the heater core. I am new here and am having problems remembering how to start a new post. Thanx for the help. Craig.
David R Leifheit
March 29th, 2013, 07:23 AM
I am trying to remove the heater core and am having problems. I have removed the screws under the cover as well as the outside screws and am unable to remove the heater core. I am new here and am having problems remembering how to start a new post. Thanx for the help. Craig.

*Assuming* you have the deluxe heater where the core/fan assembly is under the hood, there is at least one nut (its been a while since I took mine out) behind the glove box.
Wildchild
March 30th, 2013, 07:31 PM
*Assuming* you have the deluxe heater where the core/fan assembly is under the hood, there is at least one nut (its been a while since I took mine out) behind the glove box.

Thanx there was two nuts behind the insulation. The heater core has never been replaced!!!!
BillT
April 29th, 2013, 01:56 PM
The availability of New Drums is great news. For many, many years we had to rely on good used drums only. I even know of many who swapped out the whole rear to the newer style because those drums were that hard to find.

I would have to verify it, but I always knew the interchange to be '63 to '70.

Bill