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Mod | | | Forums66 Topics128,179 Posts1,057,159 Members48,465 | | Most Online14,466
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: Jun 2011 Posts: 420 Shop Shark | | Shop Shark Joined: Jun 2011 Posts: 420 | anybody know where I can get one of those adapter brackets to replace my single master cylinder under the floor of my 46 1/2 ton | | | | | Joined: Mar 2000 Posts: 784 'Bolter | | 'Bolter Joined: Mar 2000 Posts: 784 | Hoozat I fabed a bracket myself for the dual master I use. Send me your email and I can send you a short write-up and some pictures. George [email protected] | | | | | Joined: Mar 2010 Posts: 843 Shop Shark | | Shop Shark Joined: Mar 2010 Posts: 843 | I did what George did, fabed a bracket for a tandem MC for my '36 PU. It was pretty simple and uses a modern MC push rod threaded for the original '36 clevis. The system also uses 2 Wilwood 10 pound residual pressure valves.
Ray
| | | | | Joined: Jun 2011 Posts: 420 Shop Shark | | Shop Shark Joined: Jun 2011 Posts: 420 | thanks guys, just need to figure out what type of heavy metal to use
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Why do you need some 'heavy metal'?
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Jun 2011 Posts: 420 Shop Shark | | Shop Shark Joined: Jun 2011 Posts: 420 | so when I step on the pedal, the master cylinder doesnt move
| | | | | Joined: Mar 2010 Posts: 843 Shop Shark | | Shop Shark Joined: Mar 2010 Posts: 843 | hoozat,
If you invent your own MC mount would you mind posting a picture. I'd be curious how it compares to the one I made for my '36 PU just recently.
A big part of the fun of this hobby is the endless opportunities to do these upgrades on the vintage iron.
If you're in a rural area and metal stores don't exist one potential source may be Home Depot. I've seen various flat bars there. On my MC mount I used some 3/16" plate that was left from a cross member I made for my son's '66 Chevy PU.
Ray
| | | | | Joined: Feb 2010 Posts: 323 'Bolter | | 'Bolter Joined: Feb 2010 Posts: 323 | Hears what I did on my 37 Panel. brake brackets
These old bolts are in my blood. Hard thing is focusing on just one.
1937 Chevy 1/2 ton panel
1953 GMC 2 ton. future car hauler
| | | | | Joined: Sep 2010 Posts: 1,718 back yard wrench turner | | back yard wrench turner Joined: Sep 2010 Posts: 1,718 | Here is how I mounted my master cylinder click
Wayne1938 1-Ton Farm TruckStovebolt Gallery Forums1989 Silverado 1996 Mustang GT convertible When I die, I hope she doesn't sell everything for what I told her I paid for it! | | | | | Joined: Jun 2017 Posts: 1 Moderated | | Moderated Joined: Jun 2017 Posts: 1 | Wayne, what did you use for your master cylinder? I'm looking for a dual for my 42 1.5 ton.
| | | | | Joined: Sep 2010 Posts: 1,718 back yard wrench turner | | back yard wrench turner Joined: Sep 2010 Posts: 1,718 | Hi 42Buffalo, Welcome to the best forum on the net. Take a couple of minutes to introduce yourself in the Welcome center.
I used a 1 inch bore with the ports towards the passenger side. I went to my local NAPA and looked though the m/c book pictures and matched it from that. I don't know what the application is for.
I wouldn't use a smaller bore, it reduces the amount of fluid being pushed into the lines. Bigger is better.
Wayne1938 1-Ton Farm TruckStovebolt Gallery Forums1989 Silverado 1996 Mustang GT convertible When I die, I hope she doesn't sell everything for what I told her I paid for it! | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Bigger makes for a stiffer pedal.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
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