In 66 they did make a 4wd, it's called a K20. Look in my other post in my signature line at my 63 K20,
Scott


Scott Ward

2 1948 1.5-ton Loadmasters
The red one and The snow pusher
1 1950 3100
1 1954 Chevy 6500 2-Ton
1 1955 1st Series COE 5700
1 1963 K20 (454)
1 1964 C10 (350)

Raising a teenager is like trying to nail Jello to a tree!