10. Align each cover assembly with the holes in the
channel plate sump, and push the cover assem-
blies in by hand to seat the seals.
NOTICE
Do not use the bolts to draw the filter covers to
the sump. This can damage the covers, seals, or
sump.
11. Install six bolts in each cover, and torque the
bolts 38 to 44 lbf·ft (51 to 61 N·m).
12. Replace the drain plug O-ring, then install the
drain plug. Tighten the drain plug 18 to 24 lbf·ft
(25 to 32 N·m).
13. Refill the transmission with fresh automatic trans-
mission fluid and check the fluid level. See
for transmission lubricant capacities, and
for approved transmission lubricants.
Allison 4000 Series Transmission Lubricant
Capacities
*
Sump Size
Refill Capacity : qt (L)
4 Inch
39 (37)
†
2 Inch
31 (30)
†
*
Quantities listed are approximate. Add listed amount of fluid, then perform
a "hot check" and add fluid as needed. Do not overfill.
†
Add 3 qt (2.8 L) for transmissions with PTO.
Table 3, Allison 4000 SeriesTransmission Lubricant
Capacities
Allison Approved Automatic Transmission Lubricants
Transmission
Lubricant Type
*
Allison 4000 Series
Castrol TranSynd (synthetic)
or other
Allison Approved TES 295 Fluid
Allison Approved TES 389 Fluid
or
Dexron®-VI
†
IMPORTANT: For TES 389 and
Dexron-VI, use maintenance
interval M1.
*
Lubricants listed in order of preference. Do not mix fluid types. Call 1-800-
252-5283, or see
for a complete list of Alli-
son approved lubricants.
†
Dexron-VI may only be used in units beginning with S/N 6610220990.
Table 4, Allison Approved Automatic Transmission
Lubricants
Transmission
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