CarbonSteel
Well-Known Member
TBH, I was quite surprised at how little oil these axles hold, especially considering their popularity and Dana's reputation. They say that engineers know more than the layman, but in this case, 2.5QTs would have made much more sense than 1.5QTs. No one really makes a diff cover that substantially increases the capacity, so we are stuck with more frequent changes and/or upping the viscosity to compensate.No kidding on the fluid volume! I've done a couple fills (I regeared), and if I recall correctly, my D44s hold less fluid than the axles in my Suzuki Samurai!
By the way, the fluid from my 2020 JLUR rear dif at 1800 miles looked worse than my Ram after spending most of it's time towing 13k for 20k miles. It was bad. It probably didn't help that the original backlash in my D44 was around 0.018" (or was that 0.020"? I forgot). It was bad.
I finally received my RamMount to install my axle temp gauges, but the weather has been less than cooperative. Hopefully, with the rainy/colder weather will be leaving Houston within the next month and I can finish my project and start monitoring the axle temps (especially the rear) under various operating conditions. I am glad that I installed 75W-140 in the rear of mine, the first UOA was pathetic for 5K miles.
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