Is this normal?
04-11-2008, 06:38 PM
#1
Is this normal? I have an auburn posi unit, the one that came in the firehawks/ss pkgs. I took a road trip down from North Dakota and stopped in to get my oil changed. The techs showed me my rear pinion seal was leaking and topped it off with some gm diff fluid. I normally run Royal Purple or Castrol Fluid with the gm additive, but since he topped it off it makes a clunking sound, mainly when i slow down or in reverse. Is this something i should be worried about?
