Forum Discussion
JIMNLIN
Mar 30, 2023Explorer III
ilvtravln wrote:
Have an 03 F350, 90K miles, how often should the diff. oil be changed ? Ford lists the oil that came with is as synthetic. We do about 1/3 towing and the rest around town. Thanks
My 2wd '03 2500 Dodge/Cummins has 377k+ miles now on the 11.5" AAM rear axle.
I bought the truck new and after draining OEM rear axle fluid has nothing but 75w-140 Redline synthetic changed every 50k-60k miles or so.
Depending on truck use the life of the rear axle assy depends on dumping old contaminated fluids and going with fresh fluids.
Makes a difference.
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