Mark, allow me to make a recommendation. I'm sure you've all ready wasted a bunch of money on replacing the axles. So you're scared to take it to the dealer because of the outrageous repair bill they're gonna give you. So go there, pay for the diagnosis, and then figure out how you're going to find a different alternative to repair it, but stopping throwing money away at guessing at parts/diagnosis that may or may not be faulty. Good luck. 
