Right the 65 did not have one, all others did. GM did not add them for any aero reason but to hide the underbelly after they had to raise the car to meet California headlight laws. The law went into effect in 65 but GM got a one year reprieve because the 65 was already designed and in production. Rich www.shepswoodncrafts.com 68 Datsun roadster 7 Corvairs 68 Ultra Van 61 econoline PU 87 Shelby GLHS