im starting to look at an add a leaf for my truck. is there any particular brand to look for? will i be able to see an actual height difference?. i see there is 1.5, 2,and 2.5" ones, which would be best? and now that i get an AAL, what do i do for the front end? crank t-bars? i am running 265/70/17 tires so will this all look alright? thanks for any advice on this.