[Mark_C]

Try this for a Z28:

http://www.chevynova.org/69_RPO_Z28_Springs.html

Then check out the part numbers here:

http://www.chevynova.org/1969_Spring_Chart.html

GM serviced all of the available Camaro springs with about 3 different sets of front springs and about the same number of rear springs based on the part numbers in the 69 Camaro Master Parts catalogs.