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radarsonwheels
 Post subject: 8.75" rear drum question
PostPosted: Thu Oct 16, 2008 10:40 pm 
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Howdy

I am in the process of overhauling my 72 demon's brake system. I'm using all new stuff so far but I am not sure where to get new drums. I didn't know there were different sizes, but it is on a car that was originally a 340, and the drums have these big elizabethan collar looking flanges that must be for cooling?

So I am stupid for not measuring width, but I know they are 10" drums...

Anybody know what I got and where to get drums for it?

Thanks
Kevin

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Eric W
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PostPosted: Thu Oct 16, 2008 11:03 pm 
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They are 10X1.75". If you mean they have fins on them, then yes, they aid in cooling. You should still be able to get shoes for them, don't know about new drums though as they where an odd ball size and A body 8.75's are not very commen nowdays.
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Rug_Trucker
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PostPosted: Fri Oct 17, 2008 6:28 am 
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Probably not fins. Huge bell flares is what I have on the 8 3/4 I have. I though about having them cut off on a brake lathe.

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emsvitil
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PostPosted: Fri Oct 17, 2008 7:25 am 
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Probably not fins. Huge bell flares is what I have on the 8 3/4 I have. I though about having them cut off on a brake lathe.
What about cutting grooves in the bell flare so you have some fins?

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Last edited by emsvitil on Fri Oct 17, 2008 2:21 pm, edited 1 time in total.

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radarsonwheels
 Post subject: thanks- any sources?
PostPosted: Fri Oct 17, 2008 8:33 am 
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Yup, huge bell flares is what I'm talking about!

I still don't know where to get new ones. I guess I'll just put the old ones back on for now, they got a little life left in 'em.

Anybody know where to get some? Do I have to cut down some 10x2.5 front drums? Would that even work?

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Rug_Trucker
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PostPosted: Fri Oct 17, 2008 8:54 am 
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[/quote]What about cutting grooves in the bell flare so you have some fins?[/quote]

NOT VERY THICK. I NEED TO LEARN HOW TO POST PICS HERE

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slantzilla
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PostPosted: Fri Oct 17, 2008 1:39 pm 
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[/quote

What about cutting grooves in the bell flare so you have some fins?
NOT VERY THICK. I NEED TO LEARN HOW TO POST PICS HERE[/quote]

They are pretty easy to crack off with a hammer by accident. :shock:

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Hyper72Valiant
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PostPosted: Sat Oct 18, 2008 12:47 am 
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I think there are some on ebay if you want to look there, i'm pretty sure I saw some

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slantasaurus
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PostPosted: Sat Oct 18, 2008 10:40 pm 
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1974duster kev was looking for these same drum a few months ago, I'm pretty sure they are disco'd. If I ever change my car to LBP, I'll have a used but uncut set to sell. Another route that you might have to take is to change the backing plates to the B body type, buy B body drums, and have them redrilled for SBP. Some of us might HAVE to go this route in the future. :roll:

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Charrlie_S
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PostPosted: Sun Oct 19, 2008 6:42 am 
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. Another route that you might have to take is to change the backing plates to the B body type, buy B body drums, and have them redrilled for SBP. Some of us might HAVE to go this route in the future. :roll:
Depending on the type of wheel, that may not work. The center hole in the BBP drum, and wheel is larger, then the SBP. The center of the axle is larger to match.

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radarsonwheels
 Post subject: That's IT!
PostPosted: Sun Oct 19, 2008 5:32 pm 
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From now on I'm not stopping.

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slantasaurus
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PostPosted: Sun Oct 19, 2008 6:57 pm 
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. Another route that you might have to take is to change the backing plates to the B body type, buy B body drums, and have them redrilled for SBP. Some of us might HAVE to go this route in the future. :roll:
Depending on the type of wheel, that may not work. The center hole in the BBP drum, and wheel is larger, then the SBP. The center of the axle is larger to match.
Well, I guess somebody will need to come up with a spacer like the ones used to mate early TC's to later cranks. I've always hated that damn SBP !!!!

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Terencejiminy
PostPosted: Tue Oct 21, 2008 10:44 am 
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PN# BD 60123 Wagner. :D
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radarsonwheels
PostPosted: Tue Oct 21, 2008 3:26 pm 
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google gave zip.
federal mogul's website looks like back patting for shareholders, couldn't find anything specific (except that they own wagner and wagner makes drums that are quiet and good)

Sorry to ask for hand holding, but where can I order these drums from wagner?

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kesteb
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PostPosted: Tue Oct 21, 2008 5:22 pm 
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Drums for 2.5" brake shoes will not work on an axle that used the 1.75" brake shoes. And it is not a matter of SBP vs LBP, but the distance between the wheel flange and the bearing races.

On the other hand, all drums and backing plates will interchange on all axles that used the 2.5" shoes.
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