Grade of front Diff fluid
#1
#3
#6
I thought it seemed a bit strange as well thats why I asked. I guess the editors make mistakes too. Here is a cut and paste from the service manual for an 01.
FRONT AXLE
² The lubricant should have MIL-L-2105C and
API GL 5 quality specifications.
² Lubricant is SAE 75W-140 SYNTHETIC gear
lubricant.
REAR AXLE
² The lubricant should have MIL-L-2105C and
API GL 5 quality specifications.
² Lubricant is a thermally stable SAE 80W-90
gear lubricant.
² Lubricant for axles intended for heavy-duty or
trailer tow use is SAE 75W-140 SYNTHETIC gear
lubricant
FRONT AXLE
² The lubricant should have MIL-L-2105C and
API GL 5 quality specifications.
² Lubricant is SAE 75W-140 SYNTHETIC gear
lubricant.
REAR AXLE
² The lubricant should have MIL-L-2105C and
API GL 5 quality specifications.
² Lubricant is a thermally stable SAE 80W-90
gear lubricant.
² Lubricant for axles intended for heavy-duty or
trailer tow use is SAE 75W-140 SYNTHETIC gear
lubricant
#7
One more thing to add. I have drained them both now and it appeared that neither diff had been changed before. Just an observation, but the rear fluid was much darker than the front. The front looked like new oil, could it be chrysler is sticking synthetic in the front only. I guess the rear darker color could be heat related simply caused by the driveline in 2H.
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#8
Unless you drive in 4wd constantly, the front will always be cleaner than the back, as the front free wheels.
You shoulda seen the crap that came out of my tranny and X-fer case from my jeep, it looked like mud, it was prolly the first time is about 10 years or so it was ever changed, if not longer.
You shoulda seen the crap that came out of my tranny and X-fer case from my jeep, it looked like mud, it was prolly the first time is about 10 years or so it was ever changed, if not longer.