12 bolt big ten rear brake drum question

[78C10BigTen]

My 78 big ten had a 12 bolt 5 lug rear that i swapped to a 10 bolt but kept my backing plates and brakes. My question is i want to swap in 6 lug axles but need to know what drums to use. Anyone have a clue? Would 6 lug drums from a 4x4 12 bolt work?

 

[Arkansas_V8]

From what I skimmed online. As long as spline count is the same, if not swap spiders. You have both brake assemblies, see which one fits.

 

[78C10BigTen]

I know i have 30 splines in it because my 12 bolt was 30 and i kept them. My issue is what drums i need to use since my big ten has different size shoes then normal. I think im gunna buy 78 k10 drums n try

 

[Goldie Driver]

Or try 4x Suburban drums- I think they used a larger size.

https://shop.advanceautoparts.com/c3/brake-pads-shoes/15694


2-3/4 by 11-1/8 I think is the English numbers.

What size do you have now ?

 

[78C10BigTen]

Or try 4x Suburban drums- I think they used a larger size.

https://shop.advanceautoparts.com/c3/brake-pads-shoes/15694


2-3/4 by 11-1/8 I think is the English numbers.

What size do you have now ?

Honestly unsure. I know big ten has 2 diff size shoes. I cant remember. I did right it down once

 

[78C10BigTen]

From a few quick looks at specs on autozone if i have the big brakes, drums from a 78 k10 have the same inside diameter so maybe theyll be compatible

 

[bucket]

From a few quick looks at specs on autozone if i have the big brakes, drums from a 78 k10 have the same inside diameter so maybe theyll be compatible

Yeah, should be

 

[78C10BigTen]

Yeah, should be

I hope so. Im really trying to make this truck a 6 lug

 

[Goldie Driver]

I hope so. Im really trying to make this truck a 6 lug

What are you doing for the fronts ?

 

[78C10BigTen]

What are you doing for the fronts ?

Conversion rotors

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[bucket]

What wheels do you want to run?

 

[78C10BigTen]

What wheels do you want to run?

Most likely gunna be a 15" stock ralleye 10" wide. But im looking to put these right on due to having brand new tires already on. Theyre 16" probly 7 or 8 wide.

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[80BrownK10]

Most likely gunna be a 15" stock ralleye 10" wide. But im looking to put these right on due to having brand new tires already on. Theyre 16" probly 7 or 8 wide.

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I almost bought those tires. I went with Patagonia M/T. I liked the tread pattern more and the more rubber in the center of the tire I thought would ride quieter on road and wear better.