Engine

Crankshaft Rear Seal

~1min read
6special tools

Special Tool(s)

Impact Slide Hammer 100-001 (T50T-100-A)
Remover, Crankshaft Rear Seal 303-519 (T95P-6701-EH)
Replacer, Rear Crankshaft Seal 303-516 (T95P-6701-BH)
Spacer, Rear Crank Seal Replacer 303-561 (T96T-6701-B)
Adapter, Crankshaft Rear Seal (Use only the adapter retaining bolts) 303-518 (T95P-6701-DH)
Adapter, Crankshaft Rear Seal (Use only the adapter and the center jack screw) 303-S560 (T96T-6701-A)

Material

Item Specification
SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP or equivalent WSS-M2C153- H

Removal

1. Remove the flywheel or the flexplate. For additional information, refer to Flexplate in this section.

2. Using the special tools, remove the crankshaft rear seal.

Crankshaft Rear Seal

Installation

1. Clean and inspect the mating surface.

2. NOTE: Lubricate the crankshaft rear seal lips with clean engine oil prior to installation.

Assemble the special tools and the crankshaft rear seal.

Crankshaft Rear Seal

3. Install the special tools on the rear of the crankshaft.

Crankshaft Rear Seal

4. Install the crankshaft rear seal. Tighten the center jack screw (303-S560) until the spacer (303- 561) contacts the engine block.

Crankshaft Rear Seal

5. Install the flywheel or the flexplate. For additional information, refer to Flexplate in this section.

Test yourself

A quick Ford Mustang quiz: every answer comes with an explanation and a link to the manual page.