Wagoneer L6-242 4.0L VIN M FI (1988)
The Trac-Lok axle in 1988 models requires an additive, part number 8983 100 003. The additive is compatible with the standard and new synthetic axle
lubricants.
DIFFERENTIAL RING GEAR BOLT TORQUE
The ring gear used in 1988, Model 35C rear axles has a thicker cross section than prior year models. As a consequence, ring gear bolt torque has been
updated to accomodate the new, heavier gear. The new bolt torque specification is 95-122 N-m (70-90 ft.lbs.).
NOTE:
The differential case used in 1988, Model 35C rear axles has also been changed. The new ring gear and gear case can only be used as a set.
They are not interchangeable with the components used previously.
PAINT INFORMATION
The Jeep paint code for the Dark Argent accent color used on 1988 models is 88P16.
The supplier factory package paint codes for Dark Argent are:
Paint Supplier
Supplier Code
Dupont
C8830
Ditzler
34247
Rinshed Mason
17665
Engines General Information
2.5L CRANKSHAFT
A new crankshaft is used in 1988 2.5L engines. The new crankshaft is shorter in length than the previous shaft. A longer crankshaft dampener bolt is
required with the new, shorter shaft.
2.4L VALVE SPRINGS
1988, 2.5L engines will be equipped with new design, valve springs (A). The new springs are slightly tapered top-to-bottom and are identified by the two
bottom coils (B) which are flush.
New valve spring retainers and keepers (locks) are also used to accomodate the new design valve springs.