I have a question between two different coil-overs. Oddly enough, they are the same? I went on 4wheelparts.com, and looked at coil-overs for a 4X4 04-08 F-150. Three choices came up; Dirtlogic 2.5 (blue), Dirtlogic 2.5 (black), and Fabtech Dirtlogic 2.5? Isn't "Dirtlogic" a name given to the shock by Fabtech? This confused me, but also made me look at the price difference. Between those there is about a $500-600 difference? Any help would be appreciative. I know coil-overs may be a common topic, and I haven't searched yet, but if you have any info on them then please tell me.
http://www.4wheelparts.com/Lift-Kits...=4+Wheel+Drive

 

The last one is for trucks that have a 6 inch drop bracket lift. The only difference in the first two is the black or blue anodized adjusters and end caps. Both are the same price from what I saw and designed for 0-3 inches of lift.

 

Well I have a 6" Pro-comp lift in the front with a level. Does that make a difference on the choice? Why is the price difference that huge? BTW, thanks for replying to my thread.