Quote Originally Posted by 2DXTRM View Post
Its either a pro-kit (black spring) or a sportline (red spring)?

The Pro Kit black spring is a progressive rate spring (200-250 LB in the rear (456-570lb in the front))

The Sportline red spring is a linear rate spring (250 lb in the rear (550Lb in the front))


Also take into consideration sway bar sizes and tire sizes as well...
its the pro-kit. with 245 45 17 tires all the way around.