Hey everyone I'm new to all of this and was looking for a little input from people who know what they're doing. I have a '02 yukon sls 4x4 and was looking to do either a 4" or 6" bds lift with 18" rockstars and either 33 or 35" tires. My question is will this type of work do any damage to the vehicle or the comfort/handling of the ride ? Will I need to do any type of trimming to get the tires to fit . Will I need anything else besides the kit to complete the lift . I plan on having it insalled by a 4x4 shop. Any help would be greatly appreciated . Thanks