Which lift would you all go for, 4" from BDS, or 4" from Skyjacker, about $100.00 US more for Skyjacker, can't find anything on their page for warrenty, but BDS says "If you are the original purchaser of any BDS product and it breaks, we will give you a new part. Period." Now saving 100 bucks and that warrenty sounds good, but would like some feeback about either.