[ZeGermanHam]

Originally Posted by PontiacJim1959

You are indeed correct, my bad on this one. I looked at a '67 Service manual and it showed what you have. Learned something new.

So the next question is, are rubber insulators used like the 1968 and up springs? I see them listed for 1967 use.

Picture is of my '68 rear frame and you can see the top spring perch looks more like a doughnut, no orientation pocket.

Assuming the '67 is indeed the same as the '66, yes, it does use a rubber spring insulator on the top of the coil. They are different than what the '68 and later cars use, though. For my '66, it is a long piece of rubber that wraps around the coil of the spring at the top (see photo below). For the '68 and later cars, it's a flat disc with a hole in the middle. They can't be used interchangeably.