GDawg..I could be wrong...I'll have to check my information booklet with all the install directions and everything...its been 4 years since I put them on. I do know they are H&R springs though.
Other suspension mods.....Its a complete Road and Track kit from Maximum motorsports....I don't have the STB since I have a procharger and MM said they wouldn't fit, and I have Tokico Illumina Shocks and Struts. I also installed Ford Racing Upper Control Arms in the back.
* MM Strut Tower Brace
* MM 4-Point K-Member Brace
* MM Full Length Subframe Connectors
* MM Panhard Bar with Aluminum Rod
* MM Heavy-duty Rear Lower Control Arms
* H&R Springs
* Bilstein HD front struts
* Bilstein HD rear shocks
* MM Caster/Camber Plates
* MM Urethane Pinion Snubber
* Front spring isolators
* Rear spring isolators
* Solid Steering Shaft
* MM Aluminum Rack Bushings, center drilled
* Front Swaybar bushings
* Front Swaybar end link bushing kit
* Front control arm bushings, urethane