Laurel Nelsonwrote a review of Thule Load Bar Pair on June 10, 2015
We have a Toyota Tacoma with a topper and have a Thule track system permanently installed. The square bars work with almost any gear carrier.
Here is the system for this specific setup:
Thule Podium Fit Kit - 3101
Thule Podium Foot Packs - Square Bar
Thule Load Bar Pair - 58"
Rocky Mounts BrassKnuckles Upright Mount