Coilover Jack Bolts

[Build-It-Break-it]

I've searched but couldn't find any information on how to set up or select proper jack bolt material (aluminum or steel).

Allstar performance makes jack bolts and for the aluminum jack bolts it states that they're to be used with soft springs and bar. But what's considered a soft spring big bar? When should you switch to a steel jack bolt instead of aluminum?

I've also heard that the jack bolts can't be adjusted with the full weight of the car on the jack bolts and you must raise the car to be able to adjust them? If binding will occur is they're any way to set them up so they won't bind?

I found a company called Bryans racing that also sells jack bolts that they say won't bind under load.

Any info is appreciated. I'm looking to install some on my speed tech torque arm suspension. Maybe Ron Sutton can shed some light on them?

Ahmad