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Hi JPEG23, i was searching info on differentials and your name kept popping up and referred to ask you about the topic. well long story short, I started getting this clunking noise from the rear end, mostly when i let go of the gas peddle. I raised the 6er and actually felt the noise on the diff, while up on jack stands and running. If the problem is the differential and not the u joints, what is a good upgrade on it? or Swap