I have a 99 F150 2wd with a 3 inch spindle lift kit. I added a one ince spacer in the front to level it, so there is 4 inches in the front and a 1.5 inch leaf spring in the rear. I have KYB shocks for the front, and pro comp in the rear since that is the brand of lift i got. my question is that i need to shocks in the rear because i only have a inch of travel back there. what kind should i get to give me more travel? thanks for your input.