System Specifications

7.5-Inch Ring Gear
Approximate axle fill 1.54-1.66 liters (3.25-3.50 pints)
Capacity a 6.4-14.3-mm (1/4-9/16-in) below the bottom of the fill hole
a In-vehicle repair refill capacities are determined by filling the rear axle with the specified lubricant to 6-4-14.3-mm (1/4-9/16-in) below the bottom of the fill hole.

8.8-inch Ring Gear
Additive Friction Modifier 118 ml (4 oz)
Approximate axle fill capacity a,b : 1.66-1.77 liters (3.5-3.75 -pints) 6.4-14.3-mm (1/4-9/16-in) below the bottom of the fill hole
a If it is necessary to refill a Traction-Lok axle with new lubricant, add 118 ml (4 oz) of Additive Friction Modifier C8AZ-1913546-A or equivalent meeting Ford specification EST-M2C118-A before filling the axle with the new lubricant.
b In-vehicle repair refill capacities are determined by filling the rear axle with the specified lubricant to 6.4-14.3-mm. (1/4-9/16-in) below the bottom of the fill hole.