One theoretical favorite:
1968 C20 4x4, 292, 4spd, no options
...and two real-life favorites:
68Stepbed's:
CG's:
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'68 Dodge Dart 270, 225, 904, 2.76--"Lucy"
1996 Gmc 1500 Z71, 350, 4l60e, 3.73s
1995 Jeep Wrangler Rio Grande 2.5, AX5, 4.10s
1989 Toyota Pickup 22re, auto, 3.73