What size are the large brake brums? C body?

Posted By: RUMBLON

What size are the large brake brums? C body? - 02/23/09 05:38 AM

I used a cut down C body rear end 8 3/4 for my 67 dart. We rebuilt the thing but it needs the drums as they were missing.

Is this what I need? any ideas?

Dave

also, what do I measure to make sure I buy the right ones. I KNOW they are the large ones.

thanks

LETS TRY THIS ONE http://www.rockauto.com/catalog/moreinfo.php?pk=299737
RAYBESTOS Part # 2953 {PG Plus; Outside Diameter 13.62" / 5 Bolts / Finned}
Rear; 11" X 2-1/2" Brakes; Except Drum Marked MW

Dave

Attached picture 5046179-DSCF3631.JPG

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 02/23/09 05:39 AM

nuther

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 02/23/09 05:40 AM

I guess I will also need the drum kit?

Dave

Attached picture 5046186-DSCF3641.JPG

Posted By: 1_WILD_RT

Re: What size are the large brake brums? C body? - 02/23/09 05:42 AM

Your Rock Auto link reads..

Sorry!

The page you're looking for either no longer exists or is temporarily unavailable.

You need 11" drums...

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 02/23/09 05:53 AM

WILD, NOT SURE WHY IT WONT SHOW THE LINK.

HERE ARE MY OPTIONS and I changed the one link above.

RAYBESTOS Part # 2953 {PG Plus; Outside Diameter 13.62" / 5 Bolts / Finned}
Rear; 11" X 2-1/2" Brakes; Except Drum Marked MW
More Info
$36.89 $0.00 $36.89
RAYBESTOS Part # 2953R {Professional Grade; Outside Diameter 13.62" / 5 Bolts / Finned}
Rear; 11" X 2-1/2" Brakes; Except Drum Marked MW
More Info
$47.79 $0.00 $47.79
RAYBESTOS Part # 1924 {PG Plus; Outside Diameter 12.62" / 5 Bolts / Not Finned}
Front; 11" X 2-3/4" Brakes
More Info
$108.79 $0.00 $108.79
RAYBESTOS Part # 1938 {PG Plus; Outside Diameter 12.725" / 5 Bolts / Not Finned}
Front; Police Car And Taxi; 11" X 3" Brakes
More Info
$116.79 $0.00 $116.79
ACDELCO Part # 18B13 {replaces 18028326 #18028326, 19176916}
DRUM,FRT BRK DURASTOP; 11 X 2-1/2IN BRKS, EXC DRUM MARKED M.W.
* Non-stock item--shipping delayed up to 3 business days
More Info
$44.79 $0.00 $44.79
ACDELCO Part # 18B460 {#89058320}
DRUM,FRT BRK DURASTOP; 11 X 2-3/4IN DRUM
* Non-stock item--shipping delayed up to 3 business days
More Info
$130.99 $0.00 $130.99
ACDELCO Part # 18B461 {#89058321}
DRUM,FRT BRK DURASTOP; w/POLICE or TAXI or H.D.; 11 X 3IN BRKS
* Non-stock item--shipping delayed up to 3 business days

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 02/23/09 05:54 AM

Quote:

Your Rock Auto link reads..

Sorry!

The page you're looking for either no longer exists or is temporarily unavailable.

You need 11" drums...

11x2 2 1/2 11 x2 3/4 or 11 x 3? and I am confused.

Dave

http://www.rockauto.com/catalog/moreinfo.php?pk=299737

Posted By: Jim_Lusk

Re: What size are the large brake brums? C body? - 02/23/09 05:54 AM

There were 11x2, 11x2.5, and 11x3. The backing plates are what determines width.

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 02/23/09 05:59 AM

Quote:

There were 11x2, 11x2.5, and 11x3. The backing plates are what determines width.

Jim, what do I measure on the backing plate?

Dave

Posted By: 1_WILD_RT

Re: What size are the large brake brums? C body? - 02/23/09 06:11 AM

Measure the width of the shoe thats attached, assuming it belongs with that backing plate...

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 02/23/09 06:14 AM

Thnaks, I will measure it in the AM, thanks again

Dave

Posted By: CR8CRSHR

Re: What size are the large brake brums? C body? - 02/23/09 06:06 PM

Big Dave...Bil here in VV. For Billies Satellite that I am working on, I used the 11 x 2 1/2 drums and shoes. I upgraded to the 11 inch size to give it better stopping performance. I have manual disc brakes on the front. Most of the C Body rear ends were either 11 x 2 12 or 11 x 2 3/4 brake shoes either width sized drums. I had the 11 inch backing plates already so a swap was all I needed to do with new hardware and shoes. If you really need some help here, I can get some extra parts I have here to you and you can get the drums and shoes from any parts supplier. As you know I have my C and my Brother's here at the house so no worries about what you might need. Oh...and most C Body backing plates were the 11 inch type with certain B Body's having 11 inch drums as well. Let me know what ya need...Bill

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 02/24/09 05:19 PM

OK, here are the brake pads, they measure at 2 1/2 inches. So I just need 11x 2 1/2 drums--CORRECT?? And I already have the cylinders and will buy new pads and the drum kit to go with them. My backing plates are ok, arnt they? they measure at 11" per the pic at the top.

Dave

Attached picture 5049514-DSCF6613.JPG

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 02/24/09 05:20 PM

This is as they sit now!

Attached picture 5049516-DSCF6614.JPG

Posted By: CR8CRSHR

Re: What size are the large brake brums? C body? - 02/24/09 06:08 PM

Yep Dave...That is correct. 11 x 2 1/2 inch drums will work perfectly.

Posted By: klunick

Re: What size are the large brake brums? C body? - 02/24/09 07:27 PM

I ordered mine through NAPA last year. Watch out, they are heavy.

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 05/15/09 07:34 PM

Posted By: BDW

Re: What size are the large brake brums? C body? - 05/15/09 09:26 PM

I'd measure the backing plate first.

Attached picture 5232040-backingplateID.jpg

Posted By: 446acuda

Re: What size are the large brake brums? C body? - 05/15/09 10:49 PM

If you're trying to do it on the cheap, 11 x 2.5 drums can be found in the junkyard on up to mid '80's trucks and especially vans--usually uncut and in good condition since the fronts do most of the braking.

Posted By: Andrewh

Re: What size are the large brake brums? C body? - 05/15/09 10:55 PM

actually 2.5 inch pads should be for a 3 inch drum.

Posted By: Challenger 1

Re: What size are the large brake brums? C body? - 05/15/09 11:33 PM

Quote:

actually 2.5 inch pads should be for a 3 inch drum.

Posted By: HMcCandless_Jr

Re: What size are the large brake brums? C body? - 05/15/09 11:43 PM

Make sure its not from an Imperial. Different ballgame.

Posted By: Andrewh

Re: What size are the large brake brums? C body? - 05/16/09 12:07 AM

Quote:

Quote:

actually 2.5 inch pads should be for a 3 inch drum.

made me go out and measure. My mistake. I just remember the measurment not being what it said. So the 2.5 inch drum isn't really 2.5 inches deep. But the shoe is.

Posted By: Twostick

Re: What size are the large brake brums? C body? - 05/16/09 06:36 AM

My 66 New Yorker uses the same rear drum as an early 80's D150 pick-up with 4.5" bolt circle. 11x2.5 shoes IIRC.

Kevin

Posted By: BDW

Re: What size are the large brake brums? C body? - 05/16/09 12:22 PM

Quote:

I'd measure the backing plate first. It will tell you exactly what size they are

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 05/16/09 06:36 PM

Quote:

Quote:

I'd measure the backing plate first. It will tell you exactly what size they are

its posted above with a pic of the measurement!!!

Dave

Posted By: BDW

Re: What size are the large brake brums? C body? - 05/16/09 07:43 PM

You need to measure the backing plate depth. Instructions are posted in the pic I attached. As someone else stated there are different backing plates, each take a different width brake pad.

So, measure the plate, not the pad.

This will tell you which is the correct pad for the backing plate you have.

Posted By: BDW

Re: What size are the large brake brums? C body? - 05/17/09 11:25 AM

I took another look at your 2nd pic, that might be a 10" backing plate.

You need to measure the diameter where the pad seats. Or using the very outside diameter, then substract 1".

11" backing plates will measure 12" when measured from the very outside diameter.

Here's a 11" I just had powder coated.

Attached picture 5234670-100_1163.JPG

Posted By: RUMBLON

Re: What size are the large brake brums? C body? - 07/29/09 06:12 PM

Quote:

I took another look at your 2nd pic, that might be a 10" backing plate.

You need to measure the diameter where the pad seats. Or using the very outside diameter, then substract 1".

11" backing plates will measure 12" when measured from the very outside diameter.

Here's a 11" I just had powder coated.

I should have powder coated mine.