Operation CHARM: Car repair manuals for everyone.

System Specifications

Rear Axle Lubricant Conventional
All conventional axles use Premium Rear Axle Lubricant. or equivalent. meeting Ford Specification WSP-M2C197-A. Service refill capacities are determined by filling axle 1/4-9/16 inch below bottom of filler hole. Vehicle must be level with ground.
3.75
Traction-Lok
For Traction-Lok equipped vehicles, add 118 ml (4 oz.) of Additive Friction Modifier, or equivalent, meeting Ford specification EST-M2C118-A.
3.75
Limousine
Lincoln Limousine use Synthetic High Performance Rear Axle Lubricant F1TZ-19580-B, or equivalent, meeting Ford specification WSL-M2C 192-A. Add 118 ml (4 oz) Additive Friction Modifier, or equivalent, meeting Ford specification EST-M2C118-A for TLok Axle.
4.75-5.00
Friction Modifier C8AZ-19B956-A 4