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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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Joined: Jan 2003
Posts: 738
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David_Trimble
OP
super stock
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OP
super stock
Joined: Jan 2003
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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
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Re: B-body 11" rear drums - how hard to find?
[Re: BDW]
#1422634
04/20/13 07:56 PM
04/20/13 07:56 PM
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Joined: Jan 2003
Posts: 738
OK
David_Trimble
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super stock
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OP
super stock
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Cool- Found them- Bendix PDR0365, even has the fins on them.
Thanks!!!
'69 Dodge Charger R/T
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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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Joined: Feb 2005
Posts: 20,156
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,156
PA.
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Don't forget about the discount code.
137418739923866
5% off until May 12, 2013
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: B-body 11" rear drums - how hard to find?
[Re: David_Trimble]
#1422636
04/20/13 08:40 PM
04/20/13 08:40 PM
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Joined: Nov 2005
Posts: 15,118
85086
moparpollack
Lil Herman
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Lil Herman
Joined: Nov 2005
Posts: 15,118
85086
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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
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Re: B-body 11" rear drums - how hard to find?
[Re: 52savoy]
#1422640
04/25/13 06:27 PM
04/25/13 06:27 PM
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Joined: Jan 2003
Posts: 738
OK
David_Trimble
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super stock
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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
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Re: B-body 11" rear drums - how hard to find?
[Re: Cab_Burge]
#1422647
04/26/13 07:46 AM
04/26/13 07:46 AM
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Joined: May 2005
Posts: 4,706
Florida
BDW
master
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master
Joined: May 2005
Posts: 4,706
Florida
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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.
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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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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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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.
live every 24 hour block of time like it's your last day on earth
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Re: B-body 11" rear drums - how hard to find?
[Re: David_Trimble]
#1422653
04/27/13 12:18 PM
04/27/13 12:18 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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As you know to the floor ain't good. If you pull on the E brake then hit the brakes that'll quickly tell you if it's a rear brake clearance problem or not. If your brake shop has arcing equipment it made a difference on my braking with my used shoes & I'd do it with new ones too.
live every 24 hour block of time like it's your last day on earth
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Re: B-body 11" rear drums - how hard to find?
[Re: RapidRobert]
#1422656
05/11/13 05:27 PM
05/11/13 05:27 PM
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Joined: Jan 2003
Posts: 738
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David_Trimble
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Well I replaced the driver's side rear drum (fit just fine), then I adjusted the shoes on that drum (much easier to do so now- drag is very even). Before I did the adjustment I tried the e-brake experiment- I mashed the brake pedal a couple of times (went down to the floor every time- didn't go instantly down to the floor without resistance, but I had almost reached the floor by the time I felt any appreciable firmness) to center the shoes before adjusting them. Then I applied the ebrake as far as I could go and checked the cable- it was pretty taut. Tried the brake pedal again but got the same result- no difference. So now I'm suspecting the front brakes. I'll finish off replacing/adjusting the right rear drum then tackle the fronts to see if something's going on with them.
Will keep you posted-
David
'69 Dodge Charger R/T
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Re: B-body 11" rear drums - how hard to find?
[Re: David_Trimble]
#1422657
06/02/13 05:45 PM
06/02/13 05:45 PM
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Joined: Jan 2003
Posts: 738
OK
David_Trimble
OP
super stock
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OP
super stock
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Posts: 738
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Things just go from bad to worse....
I finally got around to attempt to readjust the front brakes- in order to have some room to do it I need to turn the Charger around in the garage (small garage). But when I tried to back the car out, I found that I had NO brakes at all. The e-brakes worked though (thank goodness). The irritating thing though is that before I worked on the back brakes, at least the brake pedal worked a LITTLE. I think I can still readjust the fronts as the car sits, it's just going to be more difficult to do so.
But I'm now beginning to wonder if the front brakes are the culprit as I had first though. One thing I should mention is that some years ago when I first tore down the car (and long story short) I found that the car apparently had factory disk brakes but apparently one of the previous owners had swapped out the front disks (presumably along with the spindles) for 10" drums. I know this because A) the master cylinder/booster set - along with the lines - are specific to disk, and B) I found the proportioning valve (and it looks original), which I understand is used only on disk setups.
I'm wondering if there's a problem with the mismatched disk setup with the drums that's contributing to this poor/no brake issue? Any ideas?
David
'69 Dodge Charger R/T
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Re: B-body 11" rear drums - how hard to find?
[Re: David_Trimble]
#1422658
06/04/13 06:48 PM
06/04/13 06:48 PM
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Joined: Jan 2003
Posts: 738
OK
David_Trimble
OP
super stock
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OP
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Posts: 738
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Noone wants to take a shot at this?  I'll listen to theories, ideas to try, etc....?
'69 Dodge Charger R/T
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Re: B-body 11" rear drums - how hard to find?
[Re: Blakcharger440]
#1422661
06/04/13 11:25 PM
06/04/13 11:25 PM
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Joined: Jun 2011
Posts: 511
AZ.
696pack
mopar
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mopar
Joined: Jun 2011
Posts: 511
AZ.
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Quote:
Its the 11 inch backing plates that are hard to find.
I have a pair I will sell.
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Maybe yours have been replaced before with some cheaper after market ones 
Fortunately I have the bracket, I just need to get the car to the shop to have it done (among other things- hence my trying to get the car road-worthy).