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B-body 11" rear drums - how hard to find? #1422632
04/20/13 04:01 PM
04/20/13 04:01 PM
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David_Trimble Offline OP
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Well as I mentioned in another post I had taken apart my 8 3/4" rear axle that I had assembed years ago and couldn't remember if I had greased the bearings or not. Long story short, I did. But in reassembling it and adjusting the rear brake shoes I noticed that I couldn't really adjust them correctly as the drums (11" x 2 1/2") were out of round. That is, I could rotate the assembly and feel the wheel get harder to turn as the wheel got to a certain point, then it would get easier to turn after it got past that point.

I don't know if the drums have been turned before- they might have enough meat on them to correct this but in case they don't and I need to just get new drums- how hard are they to get? The drums I have are finned and I'd like to get another finned set. The local O'Reilly's THINKS they can get a set in- they've got it on order since it's not in stock (of course). I've got a bad feeling though that they were made 'offshore'.

If this fails, is there another source I could go to? New would be nice of course but if a decent set can't be had, I'd consider used in good shape.

Suggestions? Thanks!
David


'69 Dodge Charger R/T
Re: B-body 11" rear drums - how hard to find? [Re: David_Trimble] #1422633
04/20/13 06:23 PM
04/20/13 06:23 PM
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BDW Offline
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RockAuto has them

Re: B-body 11" rear drums - how hard to find? [Re: BDW] #1422634
04/20/13 07:56 PM
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David_Trimble Offline OP
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Cool- Found them- Bendix PDR0365, even has the fins on them.

Thanks!!!


'69 Dodge Charger R/T
Re: B-body 11" rear drums - how hard to find? [Re: David_Trimble] #1422635
04/20/13 08:05 PM
04/20/13 08:05 PM
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pittsburghracer Online work
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Don't forget about the discount code.
137418739923866

5% off until May 12, 2013


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Re: B-body 11" rear drums - how hard to find? [Re: David_Trimble] #1422636
04/20/13 08:40 PM
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Are you sure the barkers are assembled true? If you reverse the shoes they can drag. Are they adjusted so that tight? Did you measure and adjust them to fit?


56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bees, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d
Re: B-body 11" rear drums - how hard to find? [Re: moparpollack] #1422637
04/20/13 09:01 PM
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David_Trimble Offline OP
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Quote:

Are you sure the barkers are assembled true? If you reverse the shoes they can drag. Are they adjusted so that tight? Did you measure and adjust them to fit?



The barkers? If you mean the shoe with the short pad to the front, yes they're on correct according the FSM. Otherwise, please explain?

Oh and PS- I didn't measure the width between shoews to drum width if that's what you mean. I backed off the adjustment then tightened them down to a light drag and that's when I noticed the unevenness. I can rotate the wheel forward and backward and I feel the drag but don't feel any outright binding...


'69 Dodge Charger R/T
Re: B-body 11" rear drums - how hard to find? [Re: pittsburghracer] #1422638
04/20/13 09:02 PM
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David_Trimble Offline OP
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Quote:

Don't forget about the discount code.
137418739923866

5% off until May 12, 2013




It gets even better- didn't know about the code! Thanks!


'69 Dodge Charger R/T
Re: B-body 11" rear drums - how hard to find? [Re: David_Trimble] #1422639
04/21/13 07:17 AM
04/21/13 07:17 AM
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52savoy Offline
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Amazon.com used to sell 11" drum for $32-$35.. Bendex and Raybestos but they doubled in price.

Re: B-body 11" rear drums - how hard to find? [Re: 52savoy] #1422640
04/25/13 06:27 PM
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David_Trimble Offline OP
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Ok got a question- got one of the drums from Rock today (the other is being drop-shipped from another location) and they're exactly like my originals except for one detail. The center hole seems to have a slight ridge on it while my original does not- it was completely flat. Is it still usable? I'm thinking that the rim won't seat flush on the drum with that ridge being there (it's about 1/16" tall- maybe less) Anyone using these drums have any problems with their rims not mounting right?

Thanks!
David


'69 Dodge Charger R/T
Re: B-body 11" rear drums - how hard to find? [Re: David_Trimble] #1422641
04/25/13 06:50 PM
04/25/13 06:50 PM
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Need a pic

Re: B-body 11" rear drums - how hard to find? [Re: BDW] #1422642
04/25/13 07:28 PM
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savoy64 Offline
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original ones had the ridge at the hub...bob

Re: B-body 11" rear drums - how hard to find? [Re: BDW] #1422643
04/25/13 07:30 PM
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David_Trimble Offline OP
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Quote:

Need a pic



Here you go:



'69 Dodge Charger R/T
Re: B-body 11" rear drums - how hard to find? [Re: savoy64] #1422644
04/25/13 07:32 PM
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David_Trimble Offline OP
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Quote:

original ones had the ridge at the hub...bob



Hmm- the one I pulled off did not have this ridge on it. However I can't prove that it's the original drum, either....


'69 Dodge Charger R/T
Re: B-body 11" rear drums - how hard to find? [Re: David_Trimble] #1422645
04/25/13 09:39 PM
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BDW Offline
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Mine doesn't have that ridge either.
Check your rim, does it make contact there?


Re: B-body 11" rear drums - how hard to find? [Re: BDW] #1422646
04/26/13 01:56 AM
04/26/13 01:56 AM
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All of the original Mopar OEM brake drums, regardless of size or years, had that little ridge Maybe yours have been replaced before with some cheaper after market ones The stock steel wheels are curved in away from where they center on the axle rings The brake drum ridge will not, should not, be a factor on the stock wheels


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Re: B-body 11" rear drums - how hard to find? [Re: Cab_Burge] #1422647
04/26/13 07:46 AM
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Doesn't appear that way to me.

Mine have the PN and Pentastar cast in, wouldn't think after-market replacement would do that.

Either way, it sounds like it shouldn't be an issue.

Re: B-body 11" rear drums - how hard to find? [Re: BDW] #1422648
04/26/13 08:28 AM
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David_Trimble Offline OP
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Quote:

Mine doesn't have that ridge either.
Check your rim, does it make contact there?




Well I'm running stock steel rims- the hub opening on the rim looks like it could make contact with that ridge. It's hard to tell as it's also got a raised portion surrounding the opening. I might have to just bolt the whole thing togther and do some checking, especially if this ridge is found on factory Mopar drums. And this drum I pulled off may very well be a aftermarket- now that I think of it, I don't recall finding the Pentastar logo cast anywhere on it.


'69 Dodge Charger R/T
Re: B-body 11" rear drums - how hard to find? [Re: David_Trimble] #1422649
04/26/13 08:54 AM
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Don't worry about it. Some drums had the ridge, some didn't.

Your wheels will fit.

Re: B-body 11" rear drums - how hard to find? [Re: DoctorDiff] #1422650
04/26/13 06:15 PM
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Its the 11 inch backing plates that are hard to find.

Re: B-body 11" rear drums - how hard to find? [Re: Blakcharger440] #1422651
04/27/13 02:12 AM
04/27/13 02:12 AM
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RapidRobert Offline
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What about having your current shoes arced to fit your current drums? Here they do for $5 per corner/fast turnaround/good finish on the shoes. It dont seem like they take off hardly any material but I've checked before/after & way more contact area afterwards & I was surprised how little contact there was before in supposedly "concentric" drums/linings. EDIT even new stuff will be slightly out of round & have a point where there is contact at that 1 point as tthe wheel/drum rotates & even if the drum is perfect the rest of the shoe assy ain't & will have that 1 place that will make contact first

Last edited by RapidRobert; 04/27/13 02:20 AM.

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