These are a special torsion bar, made by Sway Away that lift your 4X4 S-truck as much as 1.5 inches (i think). (higher than cranked stock bars!)
They were discontinued from lack of interest. I emailed them yesterday telling them that there is alot of demend for a cheap suspension lift in the S-truck.
this is what i got....
We are considering starting production againon this product. Please keep in touch. We will make a decision this month.