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11-12-2014, 02:23 AM
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#1 |
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Registered User
 Join Date: Mar 2013
Location: Grand Junction, CO
Posts: 16
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eaton HO brakes
My 69' C20 is in dire need of a rear brake job. It has an eaton ho52 with 11x2-3/4" brakes. Considering how difficult it is to locate usable drums, I started looking for a parts axle prior to tearing apart my rear axle assuming the drums were beyond spec. I located an eaton in pieces with 5.13s, a no-spin
 , and usable 12x2 drums. I have read through all the eaton threads I can find on this board, but have not seen mention of 12x2 brakes. What years and/or models did this size brake come on? Is the taller 12x2" or the wider 11x2-3/4" rated to stop more? Thanks in advance.
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11-12-2014, 04:19 AM
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#2 |
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Carpe manana
  
Join Date: Dec 2010
Location: Eau Claire, WI
Posts: 12,422
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Re: eaton HO brakes
Hello neighbor. I'm not sure if the difference reflects that between an HO52 vs an HO72, which I thought had larger brakes and was used for one ton (C30) applications. Would either of these NAPA drums work?:
http://www.napaonline.com/Catalog/Ca...203_0325237577 http://www.napaonline.com/Catalog/Ca...203_0325237577
__________________
1972 K5 CST Highlander Blazer: http://67-72chevytrucks.com/vboard/s...d.php?t=708547 1972 K20 Cheyenne Super: http://67-72chevytrucks.com/vboard/s...d.php?t=528308  Members met: ORANGBLAZ, 2003 silverado, MikeCofield, BB72CHEVKT, Duncan&Son, Sameyrasmea72, THENEWMEXICAN, HotRod C/10, brianthelion02, Sport/Truck, ryanroo, michael bustamante, Dirt's72, Already Gone, WestButteTruck, 57taskforce, Moreyel, painterljp, AASmedic, SoCoC10, Lumaestas, carbuff382, Chevyland
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11-12-2014, 08:16 AM
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#3 |
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Loves all GMC trucks
Join Date: Jul 2010
Location: Columbia Mo
Posts: 4,435
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Re: eaton HO brakes
I know Vintage windmills deals with a lot of these axles... I would contact him for some advice too. He would be able to provide first hand experience and maybe some tips.
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Mike If your helping someone and expecting something in return... your doing business not kindness! |
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11-12-2014, 10:12 AM
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#4 |
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Registered User
Join Date: Nov 2010
Location: Carlsbad, CA
Posts: 1,584
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Re: eaton HO brakes
Centric 122.66024 drums will do the job.
__________________
- Jim - My Daily Driver is a 1969 Chevrolet Custom/20 Fleetside 350/TH400/Eaton H052 4.10 and its Project thread is here http://67-72chevytrucks.com/vboard/s...d.php?t=456911 |
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11-12-2014, 03:39 PM
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#5 |
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Registered User
Join Date: Mar 2013
Location: Grand Junction, CO
Posts: 16
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Re: eaton HO brakes
I appreciate the part numbers and will follow up. I am curious though - the first thing you read from just about everyone about the eaton rear is "parts are expensive, drums and R&P are hard to get - swap in a corporate 14b". The Centric 122.66024 seem widely available and are not too outrageous pricewise. What am I missing?
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11-12-2014, 05:15 PM
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#6 |
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Registered User
Join Date: Apr 2011
Location: Klein Texas
Posts: 3,852
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Re: eaton HO brakes
I believe there is a thread where it is said "they don't fit"
<- from a guy who, now, has a 14 bolt
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My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe |
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11-12-2014, 06:42 PM
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#7 |
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Senior Member
Join Date: May 2010
Location: Wisconsin & Arizona
Posts: 4,846
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Re: eaton HO brakes
Here's a good thread regarding the drums.
http://67-72chevytrucks.com/vboard/s...d.php?t=443837 |
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11-13-2014, 11:01 PM
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#8 |
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Registered User
Join Date: Nov 2010
Location: Carlsbad, CA
Posts: 1,584
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Re: eaton HO brakes
I put 122.66024's on mine last April with no problems at all, everything fit as it should. The factory had an issue with the bolt hole size on this non-demountable type drum for a while but Centric fixed it.
__________________
- Jim - My Daily Driver is a 1969 Chevrolet Custom/20 Fleetside 350/TH400/Eaton H052 4.10 and its Project thread is here http://67-72chevytrucks.com/vboard/s...d.php?t=456911 Last edited by bollybib; 11-14-2014 at 02:52 PM. |
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