Here is the deal shep. The POL kit is not as good as the CPP. The Pol kit tries to use the same parts for 47-55.1 and 55.2-59. The CPP kit has two different kits and instructions. The POL instructions are written by someone who does not know how to write instructions and is a basic moron. But he or she is stuck with trying to accommodate a "universal" kit. These two era trucks, known as AD and TF, are different. The frame rail channel height on the AD is 5 1/2". The TF is 6". So right away it can cause that hole problem. That's why you have to mock it all up. The exact box angle is not the issue. It is the pitman/drag link leveling/smooth operation, ujoint max angles and any
clearance issues with other components.
In the CPP kit instruction for 47-54 they have you drill that hole you are asking about, first. On their 55-59 instructions, They have you drill the upper front first.
In the POL instructions, it's a all-in-one hole measured from this moronic statement written by someone with no instruction skills.
"Locate the axle centerline from front to rear by measuring the front to rear width of axle and divide by two." WTF, over? Anyone who calls the diameter of a round axle "the front to rear width" should be in accounting, not writing instructions. If that is what the hell he is saying. Telling you how to find the centerline of an axle? really? Divide by two? What a genius.
The instructions also have a misspelled word or two.
So clamp it all up there, loosely hook up the pitman/drag link and steering shaft. Maneuver the box until you get hole/brackets landing on frame. Think on it. Contemplate any interference with anything (wheels, inner fender, whatever) Drill and weld. You don't need to install the engine for it's weight but may need to install to check any
exhaust issues, motor parts or other issues interfering with the steering shaft and ujoints.
You have posted on a 19 month old post.
Texas Matt will advise you.
