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bigger rear drums on an A body #906550
01/16/11 03:51 PM
01/16/11 03:51 PM
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Carson City, NV
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babarracuda Offline OP
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What is the biggest rear brake drum thatI can put on my 67 A body without changing axels? I have an 8 3/4 that's been shortened

Re: bigger rear drums on an A body [Re: babarracuda] #906551
01/16/11 03:56 PM
01/16/11 03:56 PM
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Michigan Troll
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blk00rt Offline
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the drums I am running on my 76 dart are 11 x 2-3/4 Inch Brakes. However I do have to go to 15" rims because the 14" Ralleys are just too tight on there.


Rob Dunn
1976 Dart Sport 360
2000 dakota RT 408 with 150 nitrous
2013 Dodge Ram 1500 Hemi
2009 Jeep Patriot
Re: bigger rear drums on an A body [Re: blk00rt] #906552
01/16/11 04:01 PM
01/16/11 04:01 PM
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Carson City, NV
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babarracuda Offline OP
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Where did you get them? From what model car?

Re: bigger rear drums on an A body [Re: babarracuda] #906553
01/16/11 04:08 PM
01/16/11 04:08 PM
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blk00rt Offline
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the ones I use are for a 1966 Dodge Polara V8 - 6.3L 383ci


Rob Dunn
1976 Dart Sport 360
2000 dakota RT 408 with 150 nitrous
2013 Dodge Ram 1500 Hemi
2009 Jeep Patriot
Re: bigger rear drums on an A body [Re: babarracuda] #906554
01/16/11 04:10 PM
01/16/11 04:10 PM
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Lincoln Nebraska
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RapidRobert Offline
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Lincoln Nebraska
big or small pattern? I'd always thought that the std 1&3/4" SBP ones were it unless you went BBP. There was something way back about the 7&1/4 backing plate/drum that could be swapped for more shoe width that Mark Nixon came up w (& it think it made the archives) but not sure if it was sbp or bbp & it was too far back.


live every 24 hour block of time like it's your last day on earth
Re: bigger rear drums on an A body [Re: RapidRobert] #906555
01/16/11 04:22 PM
01/16/11 04:22 PM
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blk00rt Offline
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bbp is what I am running


Rob Dunn
1976 Dart Sport 360
2000 dakota RT 408 with 150 nitrous
2013 Dodge Ram 1500 Hemi
2009 Jeep Patriot
Re: bigger rear drums on an A body [Re: blk00rt] #906556
01/16/11 04:28 PM
01/16/11 04:28 PM
Joined: Apr 2007
Posts: 4,233
petaluma,ca. u.s.a.
west Offline
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just drill the holes out in the drums to accommodate what you have.plenty of meat there to work with.

Re: bigger rear drums on an A body [Re: west] #906557
01/16/11 04:35 PM
01/16/11 04:35 PM
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las vegas
70AARcuda Offline
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las vegas
Ted...

you can put 11 x 3 drum on the rear as long as you get the backing plates to go with them.

That is what i have on my 69 Barracuda.

I got those off a 78 Dodge Magnum or Monaco..I think...


Tony

70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
Re: bigger rear drums on an A body [Re: 70AARcuda] #906558
01/16/11 05:33 PM
01/16/11 05:33 PM
Joined: Sep 2003
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Carson City, NV
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babarracuda Offline OP
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Thanks Tony, I have 5/4.5 bolt pattern

Re: bigger rear drums on an A body [Re: babarracuda] #906559
01/16/11 08:39 PM
01/16/11 08:39 PM
Joined: May 2003
Posts: 15,487
Florida
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scratchnfotraction Offline
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Florida
the stock A-body has its own axle offset and backing plates for 1 3/4" brakes with sbp

if it has been a narrowed housing and you have the large brake off set on the axle you can use any BP-drums from

8 1/4
8 3/4
9 1/4
d-60

i used 73 newport BP-drums 11x2.5 on my narrowed a-body 8 3/4 with large brake offset axles

just get BP and brake hardware from any spare axle of your size and like

I ran 12 disc(R-body cop car) on 73 a-body spindles with 11x2.5 rear brakes on my 68 Dart with the 2-bolt alum MC

stoped real fast and no locking up

Last edited by scratchnfotraction; 01/16/11 08:42 PM.






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