1966-74 Skylark + GS NOS GM Non Cogged Alt Belt. White stamped GM belt, 1974 replacement for #1374979 it fits: 1966-67 Skylark + GS 340 less AC 1970-74 Skylark + GS 350 cars less AC Probably fits more stuff, too lazy to look. $65.00 + SH, part is in Seekonk MA