[QUOTE=rc10coleman;8348935]
I've been guarding this secret for a few years now, but I'm gonna let it out of the bag.
When I lowered my 67 C10, I wanted to find a low cost adjustable panhard bar, or perhaps make my own...
The only modification that is required is to drill the center bushing sleeve hole on each end out to the required 5/8” diameter (make sure you use a good quality drill bit, because that is a hard little bushing that gets hot fast).
Like most hacks there is always a catch. A good 5/8" drill bit will cost as much as the new trac bar. So, about $40 all in vs $55 for a CPP trac bar. Also, MORE IMPORTANT, is that most 5/8" bits are 1/2" shank. So you have to have a drill press or a HD hand drill.
Just pointing it out as I ordered this trac bar off Rock auto before thinking thru the story.