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Refueling the Past

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REFUELING
THE
PAST



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Brake issues
#1413110 Tue Jun 08 2021 03:51 PM
Joined: Jun 2021
Posts: 6
J
jrich Offline OP
'Bolter
so, last few years i have been trying to get our family truck more dialed in, brake have been the biggest issue, and the lack of fluid that always seems to be in the MC. so i replaced the MC, it was the OEM one and have had 0 leaks. but still losing fluid somehow, had the truck in a reputable shop and they also couldnt find any leaks. they did reset the adjusters and put new hardware on the back but couldnt find the hardware and adjusters they need for the front..... they said their best guess is fluid was back purging out of the MC...

1 ton front brakes... are they the same as the 3600's??? i cant find anything for hardware for a 3800 but i can find 3600? thanks! when i get the chance ill post the story on the truck

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Re: Brake issues
jrich #1413171 Tue Jun 08 2021 08:01 PM
Joined: Jul 2014
Posts: 283
1
'Bolter
On the 3600 the shoes are narrower and the wheel cylinders aren't interchangeable with the 3800. I've tried, they are a smaller diameter so the adjusters wouldn't fit. However the springs and such may be. It wouldn't be a huge investment to order it up and try. I got wheel cylinders from Jim Carter on the condition that I could return them if they didn't fit. They didn't and I returned them no sweat. Last I looked he had 1-ton wheel cylinders in his catalog.

As for the fluid leakage it has to be going somewhere. If you have a hydrovac it could be getting sucked into the engine otherwise it's going on the ground or into a brake drum somewhere. Hydrovacs were an RPO on 1-tons. The fluid also could be displacing air that didn't get purged from the system when you bled the brakes.


51 3800 PU, 55 235 (w/cam, headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.
Re: Brake issues
1Ton_tommy #1413233 Wed Jun 09 2021 02:25 AM
Joined: Jun 2021
Posts: 6
J
jrich Offline OP
'Bolter
yeah ive been looking at jim carter and LMC, so far LMC seems the best option. it has no hydrovac, ive ripped the MC all apart so id know haha. but thats essentially what the shop said is they were guessing the system was purging air back and forcing it out the lid. just a PIA ordering parts to canada and trying to return them if something is off.

Re: Brake issues
jrich #1413239 Wed Jun 09 2021 02:39 AM
Joined: Jun 2004
Posts: 8,374
W
'Bolter
What year is it?
George


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.

1972 Chevy c10 Cheyenne Super
Re: Brake issues
Wrenchbender Ret. #1413936 Tue Jun 15 2021 01:42 AM
Joined: Jun 2021
Posts: 6
J
jrich Offline OP
'Bolter
51 frame, 53 body, 62 blueflame


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