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Fluid Type Specifications

Differential Fluid
All axles
Lubricant for axles intended for heavy-duty or trailer tow use is SAE 75W-140 SYNTHETIC gear lubricant.
Mopar Hypoid Gear Lubricant or equivalent, meeting specifications MIL-L-2105C, API GL5, thermally stable SAE 80W-90.
194 RBI Axle When equipped with TRAC-LOK, include 3.5 oz. of friction modifier.
8 1/4 Axle When equipped with TRAC-LOK, include 4.0 oz. of friction modifier.