System Specifications

Front Axle

186 FIA (Model 30) SAE 75W-140 Synthetic

Rear Axle

198 RBI (Model 35) SAE 75W-140 Synthetic
8 1/4 Thermally stable SAE 75W-90. (For trailer tow or heavy duty applications the lubricant should be replaced with SAE 75W-140 Synthetic)

Note: Trac-Lok equipped axles require a friction modifier be added to the lubricant.