I was under the impression that the Superlift maintained the factory driveshaft and CV axle angles. However, on hard acceleration from a stop I am getting driveline chatter or an impact wrench type sound. This started after the Superlift install 5,000 miles ago and has been ongoing ever since. Further inspection underneath shows my driveshaft is contacting the transfer case and causing the noise. Did the shop install my lift wrong? Can I or should I just shim it down a bit so it stops making contact? Thanks for any feedback you guys can provide!