2016 CTD 2500 REAR DIFFERENTIAL QUESTION
I was looking at the window sticker from my 2016 CTD and I noticed it said I had the optional "Anti-Spin Differential Rear Axle". Ratio is 3.42. Does that mean I need to run the friction modifier in...
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My '03 2500 Dodge/Cummins has the 11.5" AAM rear axle with 327000 miles and have never packed the axle bearings with wheel bearing grease....just good ol' 80w-140 Redline synthetic.
Front bearing got the grease.
Dodge screwed the pooch on the 1st year AAM 11.5" fluid levels. Mine as some others came with fluids 3/4" below the hole per AAM so says Dodge. At around 3500 miles the AAM started a whine. So I checked the fluid and found it was indeed 3/4" low so having contacted AAM I filled it to the bottom of the hole (almost one more qt). The whine didn't get any worse but wasn't what a new truck should be doing. Went to the dealer and they say a new axle housing and all.....but STAR says no.
At about 25k miles of hard pulling GN trailers the whine went away.
Front bearing got the grease.
Dodge screwed the pooch on the 1st year AAM 11.5" fluid levels. Mine as some others came with fluids 3/4" below the hole per AAM so says Dodge. At around 3500 miles the AAM started a whine. So I checked the fluid and found it was indeed 3/4" low so having contacted AAM I filled it to the bottom of the hole (almost one more qt). The whine didn't get any worse but wasn't what a new truck should be doing. Went to the dealer and they say a new axle housing and all.....but STAR says no.
At about 25k miles of hard pulling GN trailers the whine went away.
