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Fig. 89: Installing J 43484 To J 8092 36. Using the J 43484 (2) and the J 8092 (1), install the front output shaft seal. See Special Tools.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 90: Installing Input Shaft Seal Using J 42738 37. Using the J 42738 , install the front input shaft seal. See Special Tools. 38. Remove the transfer case from the J 45759 . See Special Tools.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
DESCRIPTION AND OPERATION TRANSFER CASE DESCRIPTION AND OPERATION The Borg Warner (BW) model 4485, RPO NR3 transfer case is a 1-speed, full time, all wheel The transfer case external type planetary differential functions the same as a typical rear axle The following actions occur because of the planetary differential: If the vehicle is on a hoist, the front propeller shaft can be rotated by hand. The vehicle cannot be driven if 1 propeller shaft is removed. Operating the vehicle on the hoist can damage the differential pinion gears, by over- Operating the vehicle with 1 propeller shaft removed causes over-spinning of the differential The BW 4485 design of the planetary differential allows the use with the Vehicle Stability The BW 4485 case halves are high-pressure, die-cast magnesium. Ball bearings support the input Power Flow
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 91: Power Flow When the BW 4485 is operating in the AWD mode, the power flows from the transmission to the SPECIAL TOOLS AND EQUIPMENT SPECIAL TOOLS
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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