yeah i figured the same thing with my old ranger i had a 4" suspension lift with 33" superswamper tsl's and i was like mint the truck rides fine and isnt pulling or anything but let me tell you 3or 4 weeks later i had an alignment and 2 new tires and instead of a 50 dollar alignment it costed me almost 500 all said and done so dont play around get it alligned right away

 

I've got the same HBS 2.5 kit and went for about two months before I got mine aligned. Cost me $45 to get it aligned, and didn't need a camber/caster kit or whatever.

J

 

i had the kit and i went to my local firestone and they charged me 160$ for the lifetime of the truck for alignments, i could get as many alignments as i liked wen i went with 35s and a 6iin lift they did add a charge for the bigger tires, ive gotten my truck re aligned 4 times in the past 2 years so it has already payed for itself. 160 for the lifetime of my truck no matter wat size tires i.m.o is awesome. and they can do alignments up to 38"inches if u have a firestone around you dont know where your livin check it out.
Tim