A little of the PM I sent to Ahmad and some additional dialog
I went with the Allstar jacking bolt mainly because it seemed to be what Ron was using. I didn't really even think about the need for steel vs alum. I know in Ron's classes he's talked about cars with 1k+ springs and 5-6K sway bars. My assumption is this is what is meant by a heavy spring/bar setup. Or if you were maybe doing offloading you might need the steel. I didn't think my 3600lbs car with a 1300lbs way bar and 500lbs springs would be an issue but now that you bring it up it would be nice to know for sure what they can hold.
I also bought the weld in collars for them as well. I thought about using Antizeize on the collars have a built in grease fitting. I still need to drill a hole thru the 2" DOM I'm using to mount the collar to the hoop so i can add the fitting.
I did talk to Ron about the hoop structure. He said the hoopI built by itself should be enough to hold the weight of the car but highly recommended to integrate bay bars into the structure. When I do the cage I'll be including full bay bars and some additional tube to triangulate them back to the dash bar and also tie them together over the engine. This should help with and lateral forces in the corner.
Overall setup on the car I set the lower shock mount 4.5" from the ball joint centerline for optimum leverage/reaction on the shock. The top hoop was built based on 1-centering on the frame, 2-getting the bolt and shock in line as best as I could, 3-clearance in the middle of the UCA for Caster and camber changes, 4 height of the hoop based on LCA 1" below ride height for extension and jacking bolt in the middle of the adjustment range.
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