Its the Performance Online kit. PSK4759 and I bought the pitman arm that goes with the kit.
I'm still new to all of this and I'm not sure who is or isn't a reputable vendor for our trucks yet. I thought all these kits were pretty much the same until I was trying to look up install videos for reference and noticed 3 companies with 3 slightly different install instructions.
I also found old instructions from CPP for the kit from 1993. It is the same for the current Performance kit. The current instructions for CPP however, looks like it is the same for 55-59 but they added a different bracket for 47-54 and it raises the box. Brothers has you tilt the box back more and it uses the the same triangle bracket but added a bracket due to it hanging off the bottom of the rail because it is tilted back farther. WesternChassisinc looks like it has the same kit as Performance with the same part number too.
