A major redesign in 1978 moved the Bronco to a larger size , using a shortened Ford F-Series truck chassis to compete with both the similarly adapted Chevy K5 Blazer , as well as the Dodge Ramcharger .
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 .