Power Brake Conv, Push Rod Question

[Rakort]

Ok, I have about finished my PB conversion on my 68 C10 and of course I'm having push rod issues. Seems to be a common problem, but I couldn't find the answer in the archives by searching so here goes.

I got a complete PB assembly including pushrod off of a donor truck. I believe it was a GMC 4x4 1/2 ton maybe a 70 or so.

I've installed the assembly on my truck (see picture) and hooked up the push rod to the brake pedal. The issue I'm having is adjusting the push rod. When I adjust the push rod longer to allow the pedal to come all the way up and contact the rubber stop there isn't enough thread engagement between the rod and the adjustable rod end. When I have reasonable thread engagement (maybe 3/8" or so) the pedal gets held off the rubber stop by maybe 1/4" to 1/2".

How is everyone dealing with this issue? Accept the fact that the pedal doesn't come all the way back up and hit the rubber stop? Fabricate a longer rod? Run the rod with dangeriously few threads engaged?


Seems like the person in the following thread had a similar problem, but doesn't mention how it was resolved.

Thread covering similar issue





Thanks
Brian