Hey 4X4gmc, here are some spec.'s that might be of interest. Model: 451-WB(wheelbase) 137in., CA(cab to rear axle) 60in., Model: 452- WB 149in., CA 72in., Model: 453- WB 161in., CA 84in., Model: 454- WB 179in., CA 102in., & Model: 455- WB 197in., CA 120in.
