I know this issue has been beat to death but please bear with me. Got a 77 F-100 with manual brakes. I just got a new m/c and brake booster and I want to know what I need to bolt it on. I see that most have brackets that put the booster about 4-5 inches off the firewall. Will I need this or can I bolt dirrectly to the firewall. Also will I need another pedal assembly or linkage rod or can I get away with stock. If I do need a mounting bracket, can somebody give me the dimensions so I can fab one up.

 

Pull the parts you need from a junkyard truck. You don't need to fab anything.

 

My local junkyard is real weird when it comes to pulling parts, they only sell certain parts and if I can just make something, it is better than trying to deal with those a-holes. All I really need for the bracket is the distance from firewall to booster mount and I can add a 2" tab on each end to bolt to.

 

Find another junkyard, there are lots of them. The better junkyards for these old trucks are out away from cities. You will need to find another junkyard anyway to keep your truck running.

 

I live way out in the country, only got two junkyards, the other one doesn't have what I need, I already checked. but thanks anyways

 

If anybody could just give me the length of bracket between firewall and booster, i'd appreciate it.

 

I am enountering a similar problem with my 1974 F-100 4x4. I purchased the booster and master cylinder and now need the mount and a rod to connect the pedal. I found an aftermarket mount, but would prefer the original and rod assembly. Are there any sources known by anyone and do I just need the mount and connecting rod or also a different pedal?

 

To everyone who has been having problems or questions regarding upgrading to the power brake vacuum booster for your early Ford. I had found an adapter from Chassis Engineering, bur rather than pruchase it I fabricated my own. I used a 3 inch piece of 2 1/2 black pipe and two pieces of 1/4 plate steel. I cut one to match the original two bolt mount to the firewall, formed similarly to that of the original master cylinder. The other plate was square to mount the new vaccuum booster to it. Once all the holes were drilled and cut for the pushrod to pass through I welded the plates on either end of the pipe keeping all square to each other and all mounting holes aligned to keep the booster level and square. The length of pipe could be longer, but not much so you don't cover up all your left engine bank. Now for the pushrod. My booster had a rod installed which required a fine thread 7/16 inch bolt. Using a 2 inch long bolt I welded a piece of the original banjo bolt from the old master cylinder to the bolt less the head. This worked great and if you make it just a little long you can adjust your pedal height. End result, brakes that stop my F-100 with 35" BFG mud terrains with complete ease. If anyone wishes for more details etc you can contact me at pat.unger@outb.com.