- Nov 18, 2011
- 3,412
Front differential:
Fluid type: synthetic 75w90 (GM P/N 12378261, meeting GM Specification 9986115)
Capacity: 1.7 pints
Transfer case:
Fluid type: AutoTrak II (GM P/N 12378508, also listed as GM P/N 88900402)
Capacity: 2 quarts
Rear Differential:
Fluid type: synthetic 75w90 (GM P/N 12378261, meeting GM Specification 9986115)
Capacity:
02-03 - 4.0 pints
04-09
4.2 I6: 3.6 pints
5.3 V8: 4.3 pints
6.0 V8: 5.5 pints*
*Add GM P/N 1052358 or equivalent
2006: 4 oz
2007-2009: 5.5oz
Note: I6 EXT/XL members have reported a 5 pint capacity for the rear diff.
Note: 1 Pint = 0.5 Quarts (courtesy of HARDTRAILZ)
Transmission:
Fluid Type: DexronVI*
Capacity, pan removal only: 5 quarts
Capacity, total: 11 quarts
*DexronIII was used in the earlier models. However, GM recommends using DexronVI for all transmission services/top offs/flushes in all DexronIII applications. DexronVI is backwards compatible with DexronIII, however DexronIII is NOT forwards compatible with DexronVI.
Source: MOTOR specification guide 2011
Source: GM TechLink 5/09
2002-2005 torque specs (courtesy of Wyle):
Transmission pan: 10 ft-lbs
Front differential fill and drain plugs: 24 ft-lbs
Rear differential fill plug: 24 ft-lbs
Rear differential drain plug (if there): 35 ft-lbs
Rear differential cover (8.0" axle): 20 ft-lbs
Rear differential cover (8.6" axle): 18 ft-lbs
Transfer case (NVG126 or NVG226) fill and drain plugs: 20 ft-lbs
Side notes (courtesy of Tofer76 and jbones):
the rear diff drain (if equipped) and fill bolts are a 3/8" drive
the transfer case drain and fill bolts are a 10mm hex (allen)
the front diff drain bolt is 13mm, fill bolt is 18mm.
Front Differential drain and fill plugs (from The Roadie):
View attachment 17799
Fluid type: synthetic 75w90 (GM P/N 12378261, meeting GM Specification 9986115)
Capacity: 1.7 pints
Transfer case:
Fluid type: AutoTrak II (GM P/N 12378508, also listed as GM P/N 88900402)
Capacity: 2 quarts
Rear Differential:
Fluid type: synthetic 75w90 (GM P/N 12378261, meeting GM Specification 9986115)
Capacity:
02-03 - 4.0 pints
04-09
4.2 I6: 3.6 pints
5.3 V8: 4.3 pints
6.0 V8: 5.5 pints*
*Add GM P/N 1052358 or equivalent
2006: 4 oz
2007-2009: 5.5oz
Note: I6 EXT/XL members have reported a 5 pint capacity for the rear diff.
Note: 1 Pint = 0.5 Quarts (courtesy of HARDTRAILZ)
Transmission:
Fluid Type: DexronVI*
Capacity, pan removal only: 5 quarts
Capacity, total: 11 quarts
*DexronIII was used in the earlier models. However, GM recommends using DexronVI for all transmission services/top offs/flushes in all DexronIII applications. DexronVI is backwards compatible with DexronIII, however DexronIII is NOT forwards compatible with DexronVI.
Source: MOTOR specification guide 2011
IMPORTANT: DEXRON-VI Automatic Transmission Fluid (ATF) is the only approved fluid for warranty repairs for GM transmissions requiring DEXRON-III or prior DEXRON transmission fluids
Source: GM TechLink 5/09
2002-2005 torque specs (courtesy of Wyle):
Transmission pan: 10 ft-lbs
Front differential fill and drain plugs: 24 ft-lbs
Rear differential fill plug: 24 ft-lbs
Rear differential drain plug (if there): 35 ft-lbs
Rear differential cover (8.0" axle): 20 ft-lbs
Rear differential cover (8.6" axle): 18 ft-lbs
Transfer case (NVG126 or NVG226) fill and drain plugs: 20 ft-lbs
Side notes (courtesy of Tofer76 and jbones):
the rear diff drain (if equipped) and fill bolts are a 3/8" drive
the transfer case drain and fill bolts are a 10mm hex (allen)
the front diff drain bolt is 13mm, fill bolt is 18mm.
Front Differential drain and fill plugs (from The Roadie):
View attachment 17799