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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 2005 Posts: 1,554 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,554 | I'm converting my 41 1/2 ton to front discs, non power. What would be the proper dual master cylinder to buy for this conversion. What proportioning valve also. I know I have to buy or fabrcate a modified mounting for this master cylinder. Dave
1941 Chevy"First rebuild - complete!"Follow the story in the DITY1941 GMC resting peacefully 1946/1947 Chevy Street rod on s10 frame complete 1945 GMC panel truck in line for restoration 1941 Plymouth stock complete 1941 GMC COE in restoration processRead his Project Journal1941 Chevy Coe uncertain future resting now
| | | | | Joined: Jan 2009 Posts: 1,644 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 1,644 | You can get a master for a 70s 1/2 ton chevy truck that had disc-drum and the valve just make sure that it was not "power"I looked mine up at the NAPA sight just punched in 70 C10 and looked to see what brake sys. was offered if not try 71 and so on tell you find what you're looking for ,I have drum-drum so mine will not help you.Cheaper than buying from on line stores.
Pete | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | "Cheaper than buying from on line stores." That should read "Cheaper than buying from the truck specialty stores". Rock Auto usually beats NAPA prices. If I need something now I go to NAPA but if I'm planning a job I use Rock.
I used a '75 Chevy truck MC from Rock on my '56. | | | | | Joined: Nov 2005 Posts: 1,554 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,554 | I priced rock for some other heavy parts like rotors and the shipping for me would have cost more than the parts, I will most likely have to stay local.
1941 Chevy"First rebuild - complete!"Follow the story in the DITY1941 GMC resting peacefully 1946/1947 Chevy Street rod on s10 frame complete 1945 GMC panel truck in line for restoration 1941 Plymouth stock complete 1941 GMC COE in restoration processRead his Project Journal1941 Chevy Coe uncertain future resting now
| | | | | Joined: Jan 2009 Posts: 1,644 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 1,644 | Get the part # from NAPA and order from local store I don't buy from NAPA but they have a very good web site to look up part #s.
I get all my parts from CJC it's a local store.
Pete
Last edited by Pete52; 06/27/2010 4:26 AM.
| | | | | Joined: Nov 2005 Posts: 1,554 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,554 | For that year it shows the master with no operating rod sticking out of the master, can I assume that that master would be used for a power system and the operating rod would be in the power assist part? Dave
1941 Chevy"First rebuild - complete!"Follow the story in the DITY1941 GMC resting peacefully 1946/1947 Chevy Street rod on s10 frame complete 1945 GMC panel truck in line for restoration 1941 Plymouth stock complete 1941 GMC COE in restoration processRead his Project Journal1941 Chevy Coe uncertain future resting now
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | The one I got came with 2 rods, a long and a short. | | | | | Joined: Sep 2007 Posts: 461 Shop Shark | | Shop Shark Joined: Sep 2007 Posts: 461 | Around here, we had only Advance for a long time, now a new O'reilly's and Autozone have come in. I price match, O'reilly's will match or beat the Napa store or Carquest in town, not to mention the other two and online if they can verify via link. Find a good counter person to deal with. Heck if you have a lot of parts you plan on buying, see if they will set you up a jobber account. | | | | | Joined: Dec 2004 Posts: 52 'Bolter | | 'Bolter Joined: Dec 2004 Posts: 52 | When I upgraded my '57 1/2 ton, I went to CarQuest & got a '70 non-power master cyl. It was $17 & change with a core, + $15 without.
Mine was drum/drum, but I bet they have disc/drum.
Didn't come with a rod, but I just made one with 5/16" rod & a heim joint. | | |
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