Hard Brake Pedal

I recently rebuild all the stock drums on my CJ-3a.  New master cylinder, new wheel cylinders, shoes, springs and drums.  Seemed to bleed ok, but the brake pedal is very hard.  Takes a lot of effort and slowing roll to a stop, and it seems like i could roll backwards if i were on a steep incline.  I suspect the culprit could be old rubber hoses that are expanding or cracked/collapsed leading to bad pressure.  Maybe pinched or bad ends at valve points?  Anyone have suggestions?  If i replace the rubber hoses, should i just replace all the lines?

What year is you CJ3A?  There are at least 2 types of brakes configurations on the stock 1941 to 195?ish Jeeps.  For the purposes of this discussion the assumption is that you have 9" drum brakes.  The next questions is do the brakes have four adjusting cams or two adjusting cams?  The adjusting procedure is a little different depending on what type you have.  Confirm the brake shoes are installed properly (long shoe towards the front of the Jeep).  There is a lot of great information on adjusting the cams here - do an advanced search for it.

If there are no physical obstructions, or clogged lines, a hard pedal and poor stopping could possibly be a combination of too tight adjustment of the shoes, and brake fluid on the shoes if bleeding was not done properly.

On vehicles this old I always replace all the lines, steel and rubber.

 

No offence taken, i am by all means a novice.  Adjustment certainly could be off, they were adjusted by a mechanic but when i went back in after i got the jeep back, the shoe pads were worn unevenly(different wear marks on the shoes from each wheel, looks like shoes are expanding into drum unevenly).  Hes adamant that they just need to "break in"(new shoes, new wheel cylinders, new drums), but i dont think it looked right.  I have to practically stand on the pedal to get it to roll to slow stop, even at low speeds.  I will try readjusting them after watching some videos/reading the manual.  I suspect there are bad lines/pinched ends at connection points, but i'm hoping i can get them working reasonably well while the weather is nice and then replace the suspension and brake lines over winter. The lines bleed decently, but when i replaced the Master Cylinder, one of the connections points was rounded off and i had to use vice grips to screw it back in....not ideal and i'm worried i may have pinched the end of the line and makes me wonder what type of shape the other connection points are in.  There were all sorts of weird quick fix jobs on this thing during its time on a farm with its previous owner that i've found.   Drums and pads are new and i was very aware of not getting oil/fluid on them, so i dont think thats the issue.  Thanks for the input!