Chevrolet Tahoe, GMT820 (USA / CAN)

Transfer case fluid capacity & service interval

Chevrolet Tahoe, GMT820 (USA / CAN) transfer case fluid capacity ranges from 1,4 to 1,9 liters. Service intervals include checks every 12 months or 12500 km, and fluid changes every 50000 miles or 83000 km. The data covers 7 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Tahoe 5.3 V8 (2002-2005)
  • Use: Normal
  • Capacity 1,4 liter
  • Check 12500 km/ 12 months
  • Change 83000 km
  • Tahoe 5.3 V8 (2002-2005)
  • Automatic
  • Use: Normal
  • Capacity 1,9 liter
  • Check 12500 km/ 12 months
  • Change 83000 km
Tahoe 5.3 V8 Flex Fuel (2002-2005)
  • Use: Normal
  • Capacity 1,4 liter
  • Check 12500 km/ 12 months
  • Change 83000 km
  • Tahoe 5.3 V8 Flex Fuel (2002-2005)
  • Automatic
  • Use: Normal
  • Capacity 1,9 liter
  • Check 12500 km/ 12 months
  • Change 83000 km
Tahoe 4.8 V8 (2000-2003)
  • Use: Normal
  • Capacity 1,9 liter
  • Check 12 months
  • Change 50000 miles
  • Code: NV 246
Tahoe 4.8 V8 (2000-2003)
  • Use: Normal
  • Capacity 1,9 liter
  • Check 12 months
  • Change 50000 miles
  • Code: NV 261
Tahoe 5.3 V8 (1999-2001)
  • Use: Normal
  • Capacity 1,9 liter
  • Check 12500 km/ 12 months
  • Change 83000 km
  • Code: NV 246

Additional Notes

  • The Chevrolet Tahoe GMT820 transfer case fluid capacity varies between 1.4 and 1.9 liters depending on the model year and transmission configuration, with the lower figure applying to manual-shift transfer cases and the higher figure to automatic transfer cases in the 2002-2005 5.3 V8 and 5.3 V8 Flex Fuel variants.
  • For the 4.8 V8 (2000-2003), the transfer case holds 1.9 liters under normal use conditions, with a fluid change interval set at 50,000 miles.
  • The 5.3 V8 (1999-2001) also carries a 1.9-liter transfer case capacity under normal use, with a change interval of 83,000 km and a check interval of every 12,500 km or 12 months, whichever comes first.
  • Starting with the 2002-2005 5.3 V8, a split in capacity emerged between transfer case types: the standard transferbox is rated at 1.4 liters, while the automatic transferbox variant retains the 1.9-liter figure seen in earlier model years.
  • The 5.3 V8 Flex Fuel (2002-2005) mirrors the same capacity split as the non-Flex Fuel 5.3 V8 from the same period, with 1.4 liters for the standard transferbox and 1.9 liters for the automatic transferbox configuration.
  • Across all 5.3 V8 configurations spanning 1999-2005, the fluid check interval is consistently set at 12,500 km or 12 months, and the change interval is uniformly 83,000 km under normal use conditions.
  • The 4.8 V8 interval data is expressed in miles rather than kilometers, placing the change interval at 50,000 miles, which is a notably different unit convention compared to the kilometer-based intervals used across all 5.3 V8 entries.

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