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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: Nov 2009 Posts: 26 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2009 Posts: 26 | Thanks to those who suggested I had a bad m/cylinder. I pulled it off and found it leaking out the back. Napa says they can't get a rebuild kit and a new m/c is $170.00. Anyone know where I can get a rebuild kit. Bore is 1.25 inches. | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy circleJacres, Raybestos p/n MK261, available at Rock Auto $19.95, hope that helps. | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | Any parts store should be able to comr up with one. Try Carquest.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jan 2008 Posts: 165 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2008 Posts: 165 | Go back to NAPA and get some one with grey hair,and that can read a book, I find that hard that there is no kit for that. | | | | | Joined: May 2011 Posts: 91 Wrench Fetcher | | Wrench Fetcher Joined: May 2011 Posts: 91 | Hey, Napa does usually have the requisite "old guy." And, they usually enjoy doing the research. I just picked up a re-build kit for my 41 1.5 ton. The bore is also 1.25. I kinda doubt that it will work, but, the part number is 33 at Napa. If they had mine, I'm sure they will have yours. Now, any tricks to the installation? Didn't come with idiot proof instructions.
thanx | | | | | Joined: Nov 2009 Posts: 26 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2009 Posts: 26 | The "old guy" died several years ago. He would have known the part # by memory. He owned the business for 40 years. Mine is 1.25 bore as well. I'll order the raybestos part and see.
Thanks guys!! | | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy circlejacres and guys, there are two different master cylinder bores for the 1963 - 65 C60 MK261 is for the 1 1/4" bore cylinder, and MK253 is for the 1 1/8" bore cylinder. I'm sorry I missed the bore size notation in the first post.
Last edited by 3B; 07/11/2011 3:47 PM.
| | | | | Joined: Nov 2009 Posts: 26 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2009 Posts: 26 | Thanks for the follo-up 3B. I ordered the part yesterday. You guys have been a BIG help. | | | | | Joined: Feb 2011 Posts: 11 New Guy | | New Guy Joined: Feb 2011 Posts: 11 | I got mine at oreillys...It is An A1 cardone p/n 10-57579 and it was only 37 bucks. Also the other p/n for dual system is 10-57597...same price hope this helps as it took me a few to figure it out. | | |
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~m