thanks to Andrew for this info. on the base to the srt-6
"They began by significantly increasing the spring rates, and SRT-6 Coupe and Roadster models are tuned differently, to their own unique
characteristics. The Coupe's spring rates are 451 lb./in. in the front and
480 lb./in. in the rear, while the Roadster's are 434 lb./in. in the front and
451 lb./in. in the rear, compared to 303 lb./in. front and 337 lb./in. rear on
the base Crossfire Coupe and Roadster models."
I need a complete set of base springs. jim