Actually I stated no opinions, only facts. You are adding additional tortional load to the arm on the knuckle. Heim joints were not designed for use in single shear. Where is the opinion?
I noticed the mods you did to your truck. You better not mash the go pedal. With all the extra stress you will twist the frame, the transmission will explode, the driveshaft will bend, the axle u-bolts will snap, strip the axle splines, and break the wheel studs off. Will this happen? I think not. Some of our truck design will handle the extra stress. Same as the steering knuckle. Did I increase the amount of stress on mine, yes. Is it more than a truck with a plow mounted to the front?
Hem joints have been around a long time in the manufacturing and agriculture industries. Take a look, you will see them in single shear. Lot of times held on a stud with a washer an cotter pin. Single shear is nothing new on a heim.
The size of a bolt has no effect what so ever on forces applied to it.
Part of that is correct. If I am placing 1,000# of lateral force on the knuckle bolt, it's 1,000# no matter what size bolt is there. But, what would hold that 1,000# force better? A 5/8" grade 8 bolt, or a 3/4" grade 9 bolt. Do I have to answer?
Lateral force (shear) is probably not going to be critical on this setup, I agree.
Guess not.
What could be critical, and in my case was, is the bending moment applied to the bolt due the distance between where the heim joints attach to the bolt and where the knuckle arm attaches to the bolt. These forces result in compression on one half (half circle) of the bolt and tension on the other half of the bolt. When you torque your bolt to 500 ftlbs, you are already putting immense amounts of tension in the bolt. The additional tension through half of the bolt due to the bending moment might be enough to snap the bolt.
I guess were back to the bolt. You are comparing a 5/8" grade 8, to a 3/4" grade 9, special alloy. Do you have any specs on that bolt? Was it one that was bought at your local auto parts or hardware store? Seen those that have the marks for a grade 8, but made in Korea. No control on the quality, or strength. You mentioned the "bending". Sorry, not enough bending with this bolt. Did you even go to the site for the specs? The torque to clamp the bolt, is what keeps it from any lateral movement. I guess I shouldn't say any, as there would be some, even in the shank of a tie rod end. Enough to break it? The research I have done says no.
Well I guess we should get rid f all the engineers, because all we need is good craftsmanship.
I'm glad your setup works for you. I do not think it is stronger than a well maintained stock setup.
I doubt if there is not a person on this site that wouldn't agree that the front axle design on the 2nd gen trucks is a total P. O. S. Maintain it.

Where to start? Track bar with the tie rod end. Steering box failures. Crappy ball joints. steering wonder, one piece wheel bearings, cheap stamped control arms that are to short and bend, tie rod wear, etc. And of course the famous "Death Wobble" that has caused accidents, and left marks on many owners seats. Take it to the dealer and have them put a second steering damper on it. Great fix. Now more strain on the steering components to move another damper. we all know about DSS, Lukes Link, etc. but is it a fix?
I think mis-information on this board, especially when it deals with vital safety related components such as steering is not a good thing, but to each their own
I agree. This was not a spur of the moment decision. I did a lot of research, e-mailed and talked to people using this setup. I was at the Truck Jamboree 2 years ago. Watched the rock course. Saw what worked, and what broke. You have your opinion and facts, and so do I.
As I said earlier, this can be :-{} forever. But I'm done. People on this site are smart enough to make their own decisions. I am not trying to convince anyone to do what I did, just giving the facts of my results. That is what this site is all about. But don't try to compare what you did, with what I did. Compare apples to apples.
Brad