[argonaut]

The fabrication looks nice, but I'm always critical of these suspension kits. I always like to talk to the engineers/fabricators who designed them before dropping a bunch of cash.

I wonder how the actual geometry of the suspension, through the range of motion, compare to the factory suspension?

I don't really like the use of heim joints on the upper control arm instead of bushing. The inherent geometry of the upper arm constrains it to only rotate about a single axis. I do realize that they are probably installed to allow for changes in camber, however their orientation is not really correct, as the mounting point will be closer together or further apart as you adjust them in and out. In my experience building cars heim joints are too harsh for street use and fatigue too quickly, especially on a heavy vehicle like a truck. A bushing would be better. Plus don't out 60-66 trucks already use solid bushings form the factory? And aren't they greasable, unlike these?

I would like it better if the mounting point of the upper control arm to the crossmember was adjustable too; In-out and up-down. As you change static ride height with the coilover mount you will also drastically change the static and dynamic suspension geometry. Often times you want to be able to move the pivot point of the upper control arm down and in toward the center of the vehicle to lower the roll center and also to ensure that you don't increase positive caster as the suspension compresses, or that the rate of camber change isn't too aggressive.

Sorry to be critical, but I think its always good to ask questions and know what you are buying before you buy it. I'm not saying it isn't a great piece, its just my engineering nature to question.