Flex Plate

[rlafash]

Trying to locate a flex plate for a 66 Skylark GS, 401 "Nailhead" with a Super Turbine 400 Transmission. Car was originally equipped with a Super Turbine 300 automatic. Would the same flex plate be used for both transmissions?

[Dr. Frankenbuick]

I have two GS Skylark flexplates here. One from a 65 and one from a 66. They both fit the 300 and 400 converters here. Make sure you have the alignment hole in the flexplate lined up with the index hole on the crank flange. The flexlpate will bolt up 6 ways on the Nailhead, but only the way described is in balance.