Section 15 (Driveline System - General Information): Specifications

WARNING: This page is about a different variant/trim than selected.

MATERIAL SPECIFICATIONS

Item

Specification

Fill Capacity

Additive Friction Modifier
XL-3 (US); CXL-3 (Canada)

EST-M2C118-A

0.15L (6 oz)⁽¹⁾

Motorcraft Hypoid Gear Oil SAE 90
XT-90-GL

ESW-M2C105-A

-⁽²⁾

Motorcraft SAE 75W-140 Synthetic Rear Axle Lubricant
XY-75W140-QL (US); CXY-75W140-1L (Canada)

WSL-M2C192-A

-⁽³⁾

Motorcraft SAE 80W-90 Premium Rear Axle Lubricant
XY-80W90-QL (US); CXY-80W90-1L (Canada)

WSP-M2C197-A

-⁽⁴⁾

Premium Long-Life Grease
XG-1-C or XG-1-K (US); CXG-1-C (Canada)

ESA-M1C75-B

Threadlock and Sealer
TA-25

WSK-M2G351-A5

Ultra Silicone Sealant
TA-29

⁽¹⁾

For a complete refill on Model 60 axles equipped with a limited slip differential, add 0.15L (6 oz) of Additive Friction Modifier XL3 meeting Ford specification EST-M2C118-A to lubricant. Model 70 axles equipped with a limited-slip differential have carbon-fiber clutch discs that do not require any friction modifier.

⁽²⁾	For use in all limited-slip differentials. 2.8L (5.9 pt) in Model 60 axles, 3.1L (6.6 pt) in Model 70-2U axles and 3.9L (8.2 pt) in Model 70TR axles.

⁽³⁾	For conventional 4:10 axles and axles subject to frequent trailer towing, particularly in a hot or hilly area, use Motorcraft SAE 75W-140 Synthetic Rear Axle Lubricant XY-75W140-QL meeting Ford specification WSP-M2C192-A.

⁽⁴⁾	For use in all conventional axles. 2.8L (5.9 pt) in Model 60 axles, 3.1L (6.6 pt) in Model 70-2U axles and 3.9L (8.2 pt) in Model 70TR axles

GENERAL SPECIFICATIONS

Item	Specification
Backlash Specifications
Backlash between differential ring gear and pinion teeth	0.13-0.20 mm (0.005-0.008 in)
Backlash maximum variation between checkpoints	0.005 mm (0.002 in)
Driveshaft Runout
Driveshaft maximum runout between checkpoints	0.89 mm (0.035 in)
Rotational Torque Ranges
Pinion bearing preload (pinion only)	2.26-5.09 Nm (20-45 lb-in)
Total preload (pinion plus differential)	For Model 60 or Model 70 with a 3.54 or 3.73 ratio, add 0.9 Nm (8 lb-in). For Model 60 or Model 70 with a 4.10 or 4.56 ratio or a Model 70 TR with a 4.63 or 5.13 ratio, add 0.8 Nm (7 lb-in).