Do I really need the kit with shock adaptors or can I just use the coil spacers. I am trying to keep suspension as close to stock as possible to avoid voiding warranty. If truck needs to go to dealer I will just take 35" off and put stock on. Dealer is ok with 2.5" lift. Also do I need wheel spacers. I am getting mixed answers from wheel companies and 4wheelonline and quadratec. I am going to use stock shocks for now, until warranty gets closer to being up. Help would be appreciated. Thanks in advance.