Borgeson steering box hardware issue

Installing the powersteering box in a 70 valiant and ran into abit of a hiccup. I'm having a hard time getting the bolt closest to the shock to go in properly, it only threads down about half way then it gets stuck I inspected the threads on the bolt and they look good, threads in the kframe look good too, do I need a shorter bolt? Anyone else run into this issue?
Author: admin