Was taking a '68 GTS apart (not mine) in the last few days. The k-member in this car (probably a mid-late May 1968 build - no fender tag, but the car is #s matching) is quite different than my original (Aug. 28, 1967 SPD). It has the tabs for the late sway bar bracket bar and is cut open on the underside like the 73-up k-member. The car has the correct motor mounts and sway bar. When did the K-member change? Rhino???