The Bronco was introduced in 1966. It was a competitor to the small four-wheel drive compact SUVs that included the Jeep CJ-5 and International Harvester Scout. It was built on its own platform. Ford positioned the Bronco between the Jeep and Scout. But it was too small to capture the US market. A major redesign in 1978 moved the Bronco to a larger size. It used a shortened Ford F-Series truck chassis to compete with both the similarly adapted Chevrolet K5 Blazer, as well as the Dodge Ramcharger.