Deleaf setups ride O.K. only if its a 4cyl auto truck. And I use the term O.K. loosely. I just did an S-10 ext cab per customer demand. It did not bottom out on c-notch by maybe 1/2". There was no cutting wanted on body, so no hole in bed. I highly suggest a 3 or 4 link like Mike said.
I have a universal Triangulated poly bushed 4-link in stock $290.00 as well as other air ride parts.
LMK if I can help