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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Feb 2010 Posts: 476 'Bolter | | 'Bolter Joined: Feb 2010 Posts: 476 | I have rusty brake fluid leaking out of my front wheel cyls. What would cause this , everything was new (lines,master cyl. and wheel cyls.) 10 years ago, and it's stored inside. Can I get by with a hone and new rubber?
Last edited by Chris's 46 / 515; 07/26/2018 8:40 PM.
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Since you live in the rust belt, 10 yoars is plenty of time for rust to start all over. You could try new rubber, hone, replacing all fluid!
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Feb 2016 Posts: 1,989 'Bolter | | 'Bolter Joined: Feb 2016 Posts: 1,989 | Brake fluid is hydroscopic-it absorbs moisture from the atmosphere regardless if it's under cover. Sounds like at least time to rebuild all cylinders and flush the system.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
| | | | | Joined: Mar 2004 Posts: 6,214 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 6,214 | Might be a good time to have the master and wheel cylinders sleeved in SS or brass so you won't have to do this again in your lifetime. We should all flush our brake fluid every two years or so to get the water out. Mike B  | | | | | Joined: Jul 2000 Posts: 2,193 Insomniac | | Insomniac Joined: Jul 2000 Posts: 2,193 | Use DOT-5 fluid. It's not hydroscopic.
Gord 🇨🇦
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1954 1/2 ton 235 4 speed
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