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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: Exit1965]
#905825
01/16/11 02:47 AM
01/16/11 02:47 AM
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Joined: Apr 2010
Posts: 1,216
Under My Car
Mopar_Country
pro stock
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pro stock
Joined: Apr 2010
Posts: 1,216
Under My Car
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Quote:
I got mine from a Tradesman Van (b200 maybe?), circa 1974? if I am remembering right. I yanked the stuff off at a junkyard.
 That's a real good place to look, the older b vans, my old b van had one.
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: Exit1965]
#905831
01/16/11 10:37 AM
01/16/11 10:37 AM
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Joined: Dec 2007
Posts: 2,684
Des Moines IA
Soopernaut
master
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master
Joined: Dec 2007
Posts: 2,684
Des Moines IA
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65-68 D100 trucks came with 11x2 rear drums. So did the 61-64 trucks but they had the tapered axle.
1970 Dodge d100/eventually going on a 77 D100 frame
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: ademon]
#905832
01/16/11 10:53 AM
01/16/11 10:53 AM
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Joined: Jan 2003
Posts: 75,028
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,028
U.S.S.A.
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Quote:
My 68 RR has 11" rears, its a power disc brake car
Then someone swapped them on there, the factory installed the wrong rear end assembly or it's not an original disc car because it's supposed to have 10" drums on the rear ....
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: JohnRR]
#905833
01/16/11 11:29 AM
01/16/11 11:29 AM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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I used 11x2.5 from a 73 newport 8 3/4 I have used 9 1/4 truck BB&drums also on the 8 3/4 my 72 4x4 truck 8 3/4 has the big 5 on 5.5 wbp with 11x2 brakes i used some 10s from a 8 1/4 on the 8 3/4 also any mid 80s truck with 8 1/4-9 1/4 would be good for that size any of the mid 80s R-body cop cars will have the 11x2.5 
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: JohnRR]
#905834
01/16/11 12:31 PM
01/16/11 12:31 PM
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Joined: Sep 2004
Posts: 6,906
IL, Aurora
ademon
master
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master
Joined: Sep 2004
Posts: 6,906
IL, Aurora
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Quote:
Quote:
My 68 RR has 11" rears, its a power disc brake car
Then someone swapped them on there, the factory installed the wrong rear end assembly or it's not an original disc car because it's supposed to have 10" drums on the rear ....
It's a disc car, maybe someone swapped it, stops nice!! 
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: ademon]
#905835
01/16/11 12:50 PM
01/16/11 12:50 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
Quote:
My 68 RR has 11" rears, its a power disc brake car
Then someone swapped them on there, the factory installed the wrong rear end assembly or it's not an original disc car because it's supposed to have 10" drums on the rear ....
It's a disc car, maybe someone swapped it, stops nice!!
I agree...
My 71 challenger came with power 4 wheel drum brakes with 11" in the rear.
I installed power disc brakes on the car with the 11" in the rear and it has awesome stopping power now. So does my 74 with 10" drums in the rear.
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: BigBlockMopar]
#905837
01/16/11 01:06 PM
01/16/11 01:06 PM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Be aware that a lot of people don't know how to measure drum-diameter the proper way.
I've received a pair of 10" drums once whichh were advertised as 11" just because the clown-PO just put a tape measure to the drum and measured the OD.
Yes your right for sure, I believe 11" have cooling fins on the outside.
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: BigBlockMopar]
#905838
01/16/11 01:07 PM
01/16/11 01:07 PM
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Joined: Jan 2003
Posts: 2,402
Wichita,KS
Blakcharger440
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,402
Wichita,KS
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Quote:
Be aware that a lot of people don't know how to measure drum-diameter the proper way.
I've received a pair of 10" drums once whichh were advertised as 11" just because the clown-PO just put a tape measure to the drum and measured the OD.
So are you saying he measured he drum instead of the backing plate itself?
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: JohnRR]
#905840
01/16/11 01:11 PM
01/16/11 01:11 PM
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Joined: Jan 2003
Posts: 2,402
Wichita,KS
Blakcharger440
OP
top fuel
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OP
top fuel
Joined: Jan 2003
Posts: 2,402
Wichita,KS
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Quote:
Quote:
My 68 RR has 11" rears, its a power disc brake car
Then someone swapped them on there, the factory installed the wrong rear end assembly or it's not an original disc car because it's supposed to have 10" drums on the rear ....
Hey JohnRR. Are you saying that most all Dodge & Plymouth B bodies if equipped with power disc brakes would have had 10in drums?
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Re: What cars & trucks have 11in rear drums from for 8 3/4.
[Re: Blakcharger440]
#905841
01/16/11 01:18 PM
01/16/11 01:18 PM
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Joined: Sep 2004
Posts: 1,226
Cookeville
Chilort
Will Work For Mopars
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Will Work For Mopars
Joined: Sep 2004
Posts: 1,226
Cookeville
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The Sweptline trucks had a different drum than the big block cars. I have both a '68 Sweptline and a '70 Superbee and they are NOT the same thing. I think the drums might be 11" but they are not the bigger 11" drum with cooling fins that the big block cars got. In addition, the truck drums are becoming much more difficult to find new.
I did a front disc conversion on my Sweptline and one of the things I've been planning on doing is comparing the rear drum setup from a big block car to the Swepty. I converted my Superbee over to all disc (from all drum) and am planning on putting the bigger drum setup on my truck for 1) better stopping power and 2) accessibility of parts.
Last edited by Chilort; 01/16/11 01:35 PM.
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