When you call Quigley, verify your bolt pattern as well. The vans have an 8 on 6.5" bolt pattern from the factory, and Fseries (99 & up) have an 8 on 170mm pattern. So the answer is no, unless the wheels are coming from a pre 99 truck.
You are correct, seems quigley makes their own rotor with bolt pattern 8 on 6.5.
They also mentioned shorter lower torque arm casters @ $108 each that would help with the "death wobble"

