Just bought a new master cylinder for my 58 half ton and ran into problems inserting the alignment pin that attaches the brake pedal to the master cylinder. The pin inserts into the first ear of the master cylinder and into and thru the brake pedal assembly but will not pass thru the backside ear of the master cylinder. I did some honing on the backside and it will go now with some tapping with a hammer but the swing action of the brake pedal is tight not allowing the pedal to make a complete release. It sticks just enough to keep the brake light switch engaged. Are the new cylinders that tight or is the line bore on this one off just a bit? Maybe the repos are made for tapered pins. Anyone else had this problem?