Drive Axle - Rear - 8.8" & 9.75" Ring Gear: Lubrication
CAUTION:
On models with Traction-Lok differential, add an additional 4 ozs. of Friction Modifier (C8AZ-19B546-A). Friction modifier must be added to prevent damage to differential.
Capacity is 6.1-6.6 Pts. (2.9-3.1L) of Motorcraft SAE 75W145 High Performance Synthetic Rear Axle Lubricant (F1TZ-19580-B), plus an additional 4 ozs. of Friction Modifier (C8AZ-19B546-A). Capacities listed are approximate. Fill differential until fluid level is about 1/4" below bottom of filler plug hole.