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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: Dec 2025 Posts: 8 'Bolter | | 'Bolter Joined: Dec 2025 Posts: 8 | I am redoing my entire brake system and got a new master cylinder. I am using the old tee block that attaches to the back. The question I have, is there supposed to be a copper ring between the master cylinder and the tee block? Seems like there should be but wanted to check. Didn’t remember one on there when I took the tee off the old master cylinder. | | | | | Joined: Feb 2016 Posts: 1,995 'Bolter | | 'Bolter Joined: Feb 2016 Posts: 1,995 | If there is no other type of sealing surface such as a flare or O-ring or tapered pipe threads, then you probably need the copper gaskets.
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: Jul 2020 Posts: 51 'Bolter | | 'Bolter Joined: Jul 2020 Posts: 51 | Yes you need the copper ring gasket. Did my 53 last year and rings came with the parts. | | | | | Joined: Dec 2025 Posts: 8 'Bolter | | 'Bolter Joined: Dec 2025 Posts: 8 | | | | | | Joined: Feb 2004 Posts: 29,876 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,876 | I believe there needs to be a copper gasket on both sides of the tee block.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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