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Author Topic: source for 13" brake drums  (Read 6510 times)

Offline chronos

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source for 13" brake drums
« on: January 03, 2010, 11:22:14 am »
I have a 86 1/2ton 2WD 'heavy half'  five lug
with I think the bigger 13" drumsHow is the measurement made for the drums?Is it inside dia. or outside?
Maybe they are not the 13" depending on that.The shoes are 2 3/4"
Does anyone have a part number for these?
Looking for RAYBESTOS part number
« Last Edit: January 03, 2010, 11:50:12 am by chronos »
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Offline VileZambonie

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Re: source for 13" brake drums
« Reply #1 on: January 03, 2010, 12:15:18 pm »
On a half ton 2wd you should have 11 5/32" x 2 3/4" shoes.

You would need to measure the drum inside diameter.

Here's the GM #s .

      11 X 2 18029648
     
      11.15 X 2.75 18029663
       
      13 X 2.50 18023341 
     
      13 X 3.50 18029651

http://www.raybestos.com/wps/portal/raybestos/c1/04_SB8K8xLLM9MSSzPy8xBz9CP0os3hnbwufEBd3D2cTk-Bg_yBjCxNjAwgAykeaxfuZ-JgYO3l5B7uaBBuaBjmZBZjA5InRbebt6W_kZ2TgbuJnYWBkahng72dqZmBpaE5AdzjItZgqjBAqwPL4XAeWx22_n0d-bqp-QW5ohEFmQDoA9oAOtA!!/dl2/d1/L2dJQSEvUUt3QS9ZQnB3LzZfTjRMNDNCSktTRTRTMTVSQjlRNDAwMDAwMDA!
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Offline VileZambonie

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Re: source for 13" brake drums
« Reply #2 on: January 03, 2010, 12:17:17 pm »
http://www.autoitoolbox.com/Raybestos/Parts.aspx

Automotive
1986 Chevrolet Truck C10 
 
Description Part Number 
Brake - Brake Shoes, Rear
[Brake Shoes]
Professional Grade;11" X 2" Brakes 449PG 
[Brake Shoes]
Professional Grade;11-5/32" X 2-3/4" Brakes 473PG 
[Brake Shoes]
Service Grade;11-5/32" X 2-3/4" Brakes 473SG
 
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                         /  _ _ _\_
              ⌠ŻŻŻŻŻ'   [☼===☼]
              `()_);-;()_)--o--)_)

74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline chronos

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Re: source for 13" brake drums
« Reply #3 on: January 03, 2010, 02:04:25 pm »
Thanks Vile , I do have the 11 x 2 3/4
The 13" drums must be HUGE....lol
Thanks for the info and numbers

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Offline malibu795

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Re: source for 13" brake drums
« Reply #4 on: January 03, 2010, 03:31:05 pm »
find 13"x2.5 on alot of 3/4 trucks

13x3 was dually
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adam wildman
75 K25 383/400
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02 2500HD D-max/allison best time 13.77 @ 99mph 463rwhp/930rwtq

Offline Jim Rockford

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Re: source for 13" brake drums
« Reply #5 on: January 08, 2010, 09:11:38 pm »
try rock auto...
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1973 k20 Camper special
1980 k20 custom deluxe
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Offline Flamingbig10

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Re: source for 13" brake drums
« Reply #6 on: January 09, 2010, 01:21:07 am »
napa has them to
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