LeSabre V8-307 5.0L VIN Y 4-bbl (1984)
3.
Replace the past transmission oilpan, with service package number 8639907 which contains the following:
PART NUMBER
QUANTITY
DESCRIPTION
8639556
1
Transmission Oil Pan
8634198
1
Gasket Trans. Oil Pan
8643693
16
Bolt Asm, With Conical Washer
4.
When replacing the oil pan, it is critical that a torque wrench to tighten the hex head screws. DO NOT USE IMPACT WRENCH!
Torque all hex head screws to 11.0 N-m (9.0 ft.lbs.), then retorque the hex head screws a second time to the same specifications as above. The
second re-torque is important because the gasket material relaxes after the first tightening.
