B4000 SE Cab Plus 4 4WD V6-4.0L SOHC (2001)
3. Position the shaft seal and the special tool over the A/C compressor shaft.
4. Push the shaft seal onto the compressor shaft with the special tool until seated.
5. Install the shaft seal snap ring.
6. Carry out the A/C Compressor-External Leak Test.
7. Install the shaft seal felt.
8. Install the A/C clutch.