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1-Ton Power Wagon Dodge called it the General Purpose Power Wagon; 1946-1968 WDX-WM300, the civilian truck with the military look. Also has come to be known as the flat fender Power Wagon, abbreviated FFPW

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Old 07-17-2017, 03:40 PM   #1
Mkeller131
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Brake Drums & shoes 1948 PW

Can anyone tell me what the brake drum should measure after its been turned? I had one of them turned by a local machine shop that said they knew what they were doing. When i got it i asked what was the inner dimension so I could order the brake pads. I understand they have standard, 0.030 over and 0.060 over brake pads. The machine shop said they don't have a gauge bid enough for these drums. They just turned them. I have no idea if they screwed these up or not and I also don't have a gauge big enough that accurate enough to measure 30 or 60 thousandths. Any help or advise would be much appreciated. Also, does anyone know if Napa sells these brake shoes and if so a part number? Also the spring. this is a 1948.
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Old 07-17-2017, 04:55 PM   #2
Tom Petroff
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Most if not all Auto parts Stores, don't even carry standard shoes anymore.
Some like Napa might be able to get yours relined.
Vintage Power Wagons in IA. carry the shoes and everything else you need.
Also some Military parts vendors will have them as there the same as M37.
Tom
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Old 07-17-2017, 10:49 PM   #3
Mkeller131
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I been looking through some of the threads. I had this drum turned without the hub. I am also measuring 14 5/16 across the diameter after machining. I took off my other rear hub which I didnt take to the shop. It measures 14 1/4 but that is the high area, the pads have worn in deeper where they ride. Can I get an oversized shoe for the one I had turned and regular for the others, or oversized all 4 or what? I have no idea what to do now but I need this thing safe before I put my wife in there. Any help would be appreciated.
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Old 07-18-2017, 06:35 AM   #4
Frank Irons
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14.220 diameter is the oversize limit for the brake drum according to TM9- 8031-2, the Army technical manual.

Frank
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Old 07-18-2017, 07:46 AM   #5
Mkeller131
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So this rim and really the other one I didn't machine are actually out of spec by a long ways? Any suggestions?
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Old 07-23-2017, 03:01 PM   #6
Charles Talbert
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4-wheel disc brakes

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Originally Posted by Mkeller131 View Post
So this rim and really the other one I didn't machine are actually out of spec by a long ways? Any suggestions?
The very best solution is to convert to disc brakes on all 4. What you have found with the drums is a very common problem, and was the main driver that inspired us to build the custom disc system we offer at M Series Rebuild. We have a literal pile of used drums, I bet I can't find 4 out of the lot that is fit to turn and reuse. We offer custom shoe lining, but from what you have stated about the ID of your drums, that is obviously not a good option.
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Old 07-23-2017, 03:31 PM   #7
Mkeller131
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Thank you charles. What is the pricing on your kit?
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Old Yesterday, 05:35 AM   #8
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Thank you charles. What is the pricing on your kit?
Cost for the custom conversion components is $895 per axle kit, one kit does 2 wheels.
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