Chevrolet Avalanche, GMT940 (USA / CAN)

Additional Notes

• The front differential capacity across all three AWD configurations of the Chevrolet Avalanche GMT940 falls within a range of 1.43 to 1.73 liters. A range rather than a fixed value typically reflects variation between service fill and full overhaul fill levels, where the lower figure represents a drain-and-refill quantity and the upper figure accounts for a completely dry assembly.
• The 5.3 V8 AWD and 5.3 V8 AWD Flex Fuel variants share an identical front differential capacity specification of 1.43 to 1.73 liters across the 2007-2010 model years, indicating no differentiation in front differential sizing between the standard and flex fuel versions of the same engine.
• The front differential on both 5.3 V8 AWD variants carries a "filled for life" designation, meaning no periodic drain-and-refill interval is specified under normal operating conditions. In practice, "filled for life" refers to a factory-sealed unit where the fluid is not scheduled for routine replacement.
• The 6.0 V8 AWD configuration, covering 2007-2009, shares the same 1.43 to 1.73 liter front differential capacity as the 5.3 V8 AWD variants, despite being a different engine displacement and covering a shorter model year span.
• Unlike the 5.3 V8 AWD variants, the 6.0 V8 AWD front differential is designated under a "normal" use condition rather than "filled for life," meaning a periodic fluid service interval applies under standard driving conditions rather than a sealed, no-service approach.