As it seems hard to find specs I thought I'd post this link

http://bbb-carb.com/coilsprings/moog_Coil_Springs.htm

As complete a listing as I've seen online. I copied it to my local drive and its mine now....evil laugh follows.

Thank you for posting, I'd been looking for this!

Adding to favorites, NOW.

And more specifically for Chevelles
First for '64-'67 front springs
http://www.hal-pc.org/~rthlc/64-67_front_springs.html
then for '68-'72 front springs
http://www.hal-pc.org/~rthlc/68-72_front_springs.html

Thomas