Would these be considered a BB or spacer lift? Looks to me like the rears give more lift than the front. Isn't that opposite of most setups that're designed to reduce the front rake?

How big of a tire will these allow to be run on a JK? Could I use these to run 35's?

 

from what i understand is it allows you up to 4 inch lift.

 

The JKS website show them at 1"-2.5" for the front and 2"-4" for the rear.

Can anyone make sense of that. It seems to me from the way other lifts are advertised that this is backwards.