Description: All models. 3.9l, 5.2l. 138.7 wheelbase. Club cab, quad cab. All models. 5.9l gas. Light duty. 138.7 wheelbase. 5.2L, extended cab, 138 wheelbase. 5.9L, gas standard duty, extended cab, 134 wheelbase. 5.2L, converter, std cab 131 wheelb. 5.9L, gas standard duty, extended cab, 1500, 2500 138 wb. 5.9L, gas standard duty, converter, std cab 131 wheelb. 3.9L, converter, std cab 131 wheelb.