I'm trying to figger out a booster/master solution for brakes on this thing. Before anyone mentions it, No, I cannot mount it to the frame under the floor. Anyone have a recommendation for a vendor that supplies a solution for something like this, and/or maybe pics of your set up so I can get some ideas? Thanks in advance!
You might look for someone parting out a C4 Corvette and buy the master cylinder and booster from it. It's pretty compact .......... Maybe get the pedal and bracket assy as well. Pedal assy from mid-90s jeeps also are a consideration.
Maybe a remote booster setup? A hydraulic booster is pedal actuated and plumbed to a remote slave cylinder/MC .(mounted anywhere)
How are you going to fill the M/C? I have see guys with removeable cowls (A's) and I've seen guys use the cowl vent. But unless your truck has a lot more real estate under the dash than my 41, you aint putting a booster under there without a lot of re-engineering.
The firewall option is kinda fugly. And I can say that because I had to do it on the 41 PU I just finished. Hopefully you are running a hood cuz no one should have to look at these things on an old car or truck. I ran out of room under the floor between the RE46 transmission and exhaust pipes. But my wife required an automatic and power brakes so my options were rather limited. I figured if I have to look at it, it had better be chrome. I sourced the components from CPP, they are F body (Camaro) brackets, proportioning valve and dual bail M/C, with the small diameter booster. I chose the place on the firewall to allow removal of the hemi's rocker covers. I didn't just cut a hole in the firewall, I welded in bracing both on the outside and inside of the bulkhead to receive that unit. Another brace goes form the pedal drop to the dash. The M/C wasn't designed to go there, the firewall itself is not designed to support it. You have to account for and correct that. This is the pedal drop I used (universal fit, I think it was for a 55ish chevy PU). I added the brake light switch on an adjustable, telescopic arm (the short bracket) and welded in studs to secure the taller brace that runs to the column-drop bolts under the dash. These are both U channel for rigidity. It's job is twofold, brace the booster and give the column mount extra support.
I needed a firewall mount with booster also and went with the ECI setup with a 9” booster. The M/C with booster was hiding way too much of the engine so I built a bracket/ firewall brace to mount the booster inside the firewall behind the dash. I don’t mind seeing just the M/C on the firewall.
Not trying to be a smart ass but you shouldn't really need power brakes on a '33 pickup with a well thought out brake system. My '28 coupe had 4-wheel disc brakes and a Mustang M/C, stopped great. Customer car?
That's what I'm saying, but this guy is pretty insistent on a brake booster. Everything else is done.
Years back I did a few customer cars with fruit jar MC's and T Bird remote mount boosters. In this modern world it's kind of a step backwards but I never liked hanging all that booster stuff on the firewall of an old 30's car or truck.
As mentioned, you have to weld thicker metal to the firewall (top to bottom and the entire driver's side), then brace it to the dash. Even then that may still be some firewall flex when you push on the brake pedal. The only brake booster I've seen fail in short order are those small 7" or 8" boosters. I would go with the proper diameter bore master cylinder with the proper brake pedal ratio and skip the booster. Wilwood has great information on how to size the master cylinder bore.
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