I have a question about brakes on a 1979 F-100 2wd. I want to swap the power brakes for manual brakes and was wondering what needs to be changed other than the m/c? I read on another thread here that the proportioning valve is the same.
Thanks for any help

 

Hasn't anyone ever done this before?

 

the ? i have is why??

 

Why would you want to step on the pedal harder to get it to stop ? Kinda going backwards i think. I guess it could make your left leg stronger from pushing on it.

 

Because I have a customer that wants this truck "basic plain jane"
No p/s, no p/b, no air, radio delete, 300 6 and 3 spd on the column, 5 1/2"
stock wheels, dog dish hubcaps..............what ever the customer wants.

 

I did the swap and used a mid 80s Ford Ranger aluminum manual master cylinder. The pushrod needs to be shortened, but it wasn't a big deal. You'll need new lines from the m/c to the PV as well.

No real difference in stopping versus the power brakes. Swapping to the hydroboost was a huge difference though.

Josh

 

Get a master for an early Bronco it comes with the manual rod....NEVER CUT A ROD! Weld fails no brakes,Does not make for a good day.

 

Thanks for the help guys, I was stuck on this one.

 

I don`t know about the trucks, but on many Ford cars the brake pedal is different, to obtain more leverage. When I converted my 85 Mustang drag car from power to manual brakes (using all the parts from an origional manual brake 80 Mustang), not only was the pedal different where the master cylinder pushrod attatches, but the upper pivot bolt in the pedal bracket used a different location.

 

Believe it or not, I did this swap on my '79 Ford. The reason was when I switched my chassis to the 4x4 frame, it had power brakes, but my cab didn't. I only had half the parts for power brakes, but I had ALL the parts for manual. The proportioning valve is the same. The master and push rod are different. I'm pretty sure the pedal assembly is the same.

 

I went to Auto Zone and bought a m/c for a 79 with manual and front disc brakes and it came with the push rod and seal, gonna try it tomorrow and see what happens..................

 

I dont know about the F trucks

but on 83 Ranger the pedal is different. The fulcrum/pivot is in a different spot, so that you'll get more leverage with the manual brake pedal, and the cylinder mounts at a slightly different height on firewall.
It's mentioned in the Ford service manual that pedal pressure will be excessive if one simply deletes the booster.

Sure 'nuff, when i got to junkyard the manual brake pedal has "manual" stamped on its side;
furthermore the bracket that bolts m'cylinder to firewall is different - might be it's reversible and just installed upside-down i cant quite remember that.

It's important enough to look before you leap , i think.
Maybe parts store can see if brake pedals for your year have different part# manual vs power..

old jim

 

You need to get together with this guy: https://www.ford-trucks.com/forums/1...rake-help.html

Hes doing the opposite of what your doing, maybe you can swap out pedals etc.

 

Thanks for telling me about him, hope to do some tradeing.

Trace in AR.