Kargo Master Ladder rack for 8' pickup truck box was purchased new in 2017 This rack was used as a ladder rack, it is built for an 8' box and fit over a canopy. The manufacturers part numbers for the product are as follows; - KMR 04000 (SIDE CHANNELS FOR FSZ STD CAB 96) - KMR 01110 (LEGS & BARS GM, RAM. TUNDRA, F15) - KMR 31530 (6" TALLER LEGS FOR 0111-0) https://www.kargomaster.com/