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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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Mar 2005 Posts: 209 'Bolter | | 'Bolter Joined: Mar 2005 Posts: 209 | While waiting for spring, I'm gathering parts and info for my 51 3100. Need to redo rear brakes, and I'm thinking about converting to a dual cylinder. I grew up driving single master cylinder trucks, they don't scare me, but I also appreciate the dual system if a line breaks. How involved is this? Does the master cylinder stay under the floor? I want to stay as stock as possible, but safety upgrades are also in the plan. | | | | | Joined: Dec 2001 Posts: 1,248 'Bolter | | 'Bolter Joined: Dec 2001 Posts: 1,248 | You can mount a dual master cylinder under the floor. The mounting piece needs to be modified. I think even some have been able to fit power assisted dual master cylinder under the floor.
I'm going to use a master cylinder like the one on my '70 Chevy Nova. It is made for 4 wheel drum brakes and has the same 1" bore that the stock single truck master cylinder has. And I can keep my stock pedal.
John
| | | | | Joined: Sep 2007 Posts: 393 'Bolter | | 'Bolter Joined: Sep 2007 Posts: 393 | A similar post on this came up a couple of weeks ago. Check it out here.
It's a small world, but I wouldn't want to paint it.
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