[Wheelin98TJ]

Engine:

2.5L 4 cyl - 4 quarts
2.4L 4 cyl - 5 quarts
4.0L 6 cyl - 6 quarts

Transmission:

30RH 3 speed auto - ATF+4 (ATF+3 originally recommended; ATF+4 is replacement) For number of quarts, see post #2 below
32RH 3 speed auto - Approximately 4 quarts ATF+4 (ATF+3 originally recommended; ATF+4 is replacement) when drained via dropping the pan / Approximately 8 quarts dry fill (see post #2 below for fill procedure per the FSM)
42RLE 4 speed auto - Approximately 4 quarts ATF+4 when drained via dropping the pan / Approximately 8.8 quarts dry fill

AX-5 5 speed manual - 3.3 quarts 75W-90 GL3, 75W-90 GL4, or 10W30 (NOT GL5 or GL5 compatible as incorrectly stated in some of the manuals)
AX-15 5 speed manual - 3.32 quarts 75W-90 GL3, 75W-90 GL4, or 10W30 (NOT GL5 or GL5 compatible as incorrectly stated in some of the manuals)
NV3550 5 speed manual - 2.1 quarts Mopar fluid part # 04874464AA or Synchromax (meets Mopar MS-9224 specs)
NV1500 5 speed manual - 2.4 quarts Mopar part # 04874464AA or Synchromax (meets Mopar MS-9224 specs)
NSG370 6 speed manual - 1.58 quarts Mopar part # 04874464AA or Synchromax (meets Mopar MS-9224 specs)

Transfer Case:

231 - 1.1 quarts ATF+3 or ATF +4
241 - 2.1 quarts ATF+4

Axles:

Dana 30 - 1.25 quarts 80W-90
Dana 35 - 1.75 quarts 80W-90 or 75W-140 *
Dana 44 - 2 quarts 80W-90 or 75W-140 *
Rubicon Dana 44 (FRONT) - 1.375 quarts 75W-140 synthetic
Rubicon Dana 44 (REAR) - 2 quarts 75W-140 synthetic **

*4 oz of friction modifier is required with Trac-Lok limited slip differential.
**Friction modifier is NOT required with Tru-Lok locker/limited slip differential (factory Rubicon locker).

Cooling System:

2.5L - 9 quarts
2.4L - 10.1 quarts
4.0L - 10.5 quarts

[Wheelin98TJ]

AUTOMATIC TRANSMISSION FILL PROCEDURE per the FSM
32RH and 30RH (97-02 3 spd auto)

To avoid overfilling transmission after a fluid
change or overhaul, perform the following procedure:

(1) Remove dipstick and insert clean funnel in
transmission fill tube.
(2) Add following initial quantity of Mopart ATF
Plus 3 to transmission:
(a) If only fluid and filter were changed, add 3
pints (1-1/2 quarts) of ATF Plus 3 to transmission.
(b) If transmission was completely overhauled,
torque converter was replaced or drained, and
cooler was flushed, add 12 pints (6 quarts) of ATF
Plus 3 to transmission.
(3) Apply parking brakes.
(4) Start and run engine at normal curb idle
speed.
(5) Apply service brakes, shift transmission
through all gear ranges then back to NEUTRAL, set
parking brake, and leave engine running at curb idle
speed.
(6) Remove funnel, insert dipstick and check fluid
level. If level is low, add fluid to bring level to
MIN mark on dipstick. Check to see if the oil level
is equal on both sides of the dipstick. If one side is
noticably higher than the other, the dipstick has
picked up some oil from the dipstick tube. Allow the
oil to drain down the dipstick tube and re-check.
(7) Drive vehicle until transmission fluid is at normal
operating temperature.
(8) With the engine running at curb idle speed, the
gear selector in NEUTRAL, and the parking brake
applied, check the transmission fluid level.
CAUTION: Do not overfill transmission, fluid foaming
and shifting problems can result.
(9) Add fluid to bring level up to MAX arrow
mark.
When fluid level is correct, shut engine off, release
park brake, remove funnel, and install dipstick in fill
tube.