So i have a 2010 2dr jeep wrangler manual transmission... i took the top off the other day cause it finally warmed up in idaho. When i backed out of the driveway and pulled out of my subdivision i could here my driveshaft making noises everytime it rotated... but after five minutes it stopped... i only have 6000 miles on it and its only mods are 35" and a 4inch lift. is this normal? And my differential cover and drive shaft are covered in rust.. and can that cause me problems? thanks for the help!