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Old 11-11-2018, 03:26 PM   #1
lefty7845
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P3500 Dually rear drum brakes

I need help. My 81 GMC P3500 was built with a drive shaft emergency brake. I would like to install the emergency brake on the rear end. Finding backing plates with holes for emergency brake cables has been fruitless. I have heard that C30 backing plates should fit. Wondering if anyone would know for sure?
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Old 11-16-2018, 11:20 PM   #2
kwmech
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Re: P3500 Dually rear drum brakes

Dana 70 and 14 bolt more than often take the same brakes. So it would depend on which rear you have
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Old 11-17-2018, 08:33 AM   #3
lefty7845
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Dana 70 and 14 bolt more than often take the same brakes. So it would depend on which rear you have
I think my rear end is 10 bolt
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Old 11-17-2018, 09:01 AM   #4
mongocanfly
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Re: P3500 Dually rear drum brakes

Shouldnt be a 10b in a 3500....unless somebody swapped it in...can you get a pic of axle And diff cover?...how many lug bolts does it have?
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Old 11-17-2018, 09:25 AM   #5
lefty7845
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Shouldnt be a 10b in a 3500....unless somebody swapped it in...can you get a pic of axle And diff cover?...how many lug bolts does it have?
I have 10 bolt with 8 lug wheels, will take a pic when I get home
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Old 11-17-2018, 10:37 AM   #6
lefty7845
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I have 10 bolt with 8 lug wheels, will take a pic when I get home
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Old 11-17-2018, 10:39 AM   #7
lefty7845
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Old 11-17-2018, 10:56 AM   #8
lefty7845
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Re: P3500 Dually rear drum brakes

I have add the pics.
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Old 12-01-2018, 02:13 PM   #9
lefty7845
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Re: P3500 Dually rear drum brakes

11

Last edited by lefty7845; 12-01-2018 at 02:19 PM. Reason: moved to new post
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