So uh I guess ever since i took the truck to the 100mph mark, I have been hearing more pings and clacks than normal. They sound kinda like something metal hitting againt the drive shaft making that unique ping kind of noise. Also I have been getting some vibrations, pretty bad at times. Mostly accelerating in 3rd gear and some while cruising in 4th. I greased up both u-joints but it didn't make any improvements. Am I right to think this is u-joints? I have an extra u-joint (Brute Force). Should I just put it in and see how that works out?