Model History and Information: Diecast Masters sells this miniature as the Cat Ox Stampede Dump Truck keychain, part of its Micro Constructors keychain range. It depicts a rigid straight truck, not an articulated hauler: a yellow Cat cab and chassis with tandem rear axles carry a grey dump body, and a metal key ring is attached at the rear. Diecast Masters pairs a Cat CT660 with an Ox Stampede body in its larger models 85633 and 85668. The CT660 was a Class 8 vocational truck built for Caterpillar by Navistar from 2011. Ox Bodies, founded in 1972 in Fayette, Alabama, builds Class 6 to 8 dump bodies, and it designed the Stampede, with smooth, seamless radius sides, for large rock, riprap and demolition material.