Trouble with drums

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Feb 6, 2023 | 03:54 PM

Johnsdrum

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4th Gear

Joined: Feb 2023

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Trouble with drums

Hello, I have a 71 f750 dump truck I am redoing the rear brakes on. Have all new brake parts for it but am having a very hard time finding new drums. Drum and hubs are one piece, 10 lug, split gear Eaton axle. and nobody I speak to seems to be able to turn the drums I have as they are too large, also they are so rusted half the people I've spoken to say they are shot and need replacing I have spoken to every single shop locally. I cannot find anything close to what I need everywhere I look so I am coming here hoping somebody may have some advice, thank you
-John, grants pass Oregon

Feb 6, 2023 | 04:12 PM

85e150

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Joined: Apr 2004

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Welcome to FTE!

No big truck places near you?

Drums are a problem--new ones are almost impossible to find. Truck wrecking yards or field finds are "sources".

There should be a wear spec or maximum diameter spec on them. Any way to measure them?

What is the inside surface like? Surface rust or worse?

Feb 6, 2023 | 04:28 PM

Johnsdrum

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4th Gear

Joined: Feb 2023

Posts: 4

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Thank you, apparently nobody in town has a lathe big enough to do this. Not too many wrecking yards either, Im skeptical I would find something this old easily but will start looking. Left drums in town at one shop that might have a lead... Will have to measure them and get back on here.

Feb 7, 2023 | 05:08 PM

Destroked 450

Cargo Master

Joined: Dec 2015

Posts: 2,549

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From: Harned, Ky

Hub and drum are two piece
10 lug sounds like you possibly have air brakes as most of the trucks that size in the 60/70’s with hydraulic brakes had 6 lug rims
But anything is possible

Feb 24, 2023 | 05:49 PM

Anoymousjoe4126

5th Wheeling

Joined: Apr 2018

Posts: 35

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Need info to help

I had to do a ton of research putting new brakes on my f700, I can probably help you out but I need some information. First off, air or hydraulic brakes? Second, brake width and drum inner diameter? I'm assuming you are using Budd rims?