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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: Apr 2002 Posts: 4 New Guy | | New Guy Joined: Apr 2002 Posts: 4 | My 1951 Chevy 4400 has all new brake lines and wheel cylinders.
Question: Is there an off-the-shelf master cylinder/booster combination available that would allow me to go to dual system braking with minimum re-configuring? All I've inquired about are said to be too small for the 4400.
Thanks for info.
DCB
David C. Baker
| | | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy David C. Baker, welcome, the stock master cylinder bore for your truck is 1 1/4", I wouldn't use a master cylinder with a bore smaller than that. A lot of the systems available use master cylinders designed for disc/disc braking systems, so additional residual pressure valves would be required for a drum/drum braking system, hope that helps. | | | | | Joined: Aug 2016 Posts: 34 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2016 Posts: 34 | I did my 52 4400 with a G30 chevy truck master off Rockauto and used a universal vacuum Booster. Mounting was a snap, by using a universal mount bracket and fabricated (4 )9x 3/4" did. stand offs. The standoffs were for building in clearance for the e brake. Let me tell you, once the brakes were bleed, the truck stops better than new.
Last edited by Rich 1952; 02/11/2018 9:50 PM. Reason: mistaken left out
| | | | | Joined: Jan 2018 Posts: 10 'Bolter | | 'Bolter Joined: Jan 2018 Posts: 10 | Hi Jim Carter has them I believe it was $87 for dual master cylinder
TENINE
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