1995 Chevy S-10 4x4 Transfer Case Fluid: Capacity & Specs

Fluid Capacity

• 5-Speed Manual Transmission (NV3500): 1.5 pints (0.71 L)
• Automatic Transmission (4L60E): 1.7 pints (0.80 L)

Fluid Specification

• Automatic (BW 4472 / NP233): GM Auto Trak II (blue) **OR** Dexron III / Mercon (red) – **DO NOT MIX**. Auto Trak II preferred for clutch pack longevity.
• Manual (BW 4472 / NP231): Synthetic 75W-90 GL-4 gear oil (e.g., ACDelco 10-4057, Red Line MT-90). NOT ATF.

Service Procedure

1. Warm up drivetrain (fluid flows better).
2. Remove fill plug FIRST (verify access).
3. Remove drain plug; drain completely.
4. Reinstall drain plug (new washer, torque ~20 ft-lb).
5. Fill via fill plug until fluid drips out (level with fill hole).
6. Reinstall fill plug. Test drive; recheck.

Interval

Every 50,000 miles or 4 years (severe service: 30k/2yr). Auto Trak II degrades → chatter/shudder in Auto 4WD.