I have a 2001 Volvo SX-M drive SER #4202030663. With a 5.0 GL 4012045986 3869056. Growling when turning or trimming up with muffs on. I pulled drive off to find absolutely no evidence of water. U-joints felt good and so did Gimbal. after checking alignment with proper tool all I could think to do was replace U-joints (figuring it only growled while turning or trimming but not when straight and level). Put back together and it's a little quieter but still growling. Not sure what to do next. Has anyone gone through this? any help would be appreciated.