Yukon 4WD V8-6.5L DSL Turbo VIN S (1997)
Seals and Gaskets: Service and Repair
Borg-Warner 4470 Transfer Case
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Tools Required:
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J 37668-A Output Shaft Seal Installer (Borg-Warner Transfer Cases)
REMOVE OR DISCONNECT
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This procedure applies to front and rear output shaft seal replacement.
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Raise and support the vehicle.
1. Front or rear propeller shaft.
2. Propeller shaft yoke nut and flat washers (not used at rear on some models).
3. Propeller shaft yoke.
4. Transfer case shield.
5. Seal.
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Remove the seal with a screwdriver. Do not damage the sealing bore when removing the seal.
INSTALL OR CONNECT
1. Seal.
A. Lubricate the seal lips with transmission oil or petroleum jelly.
B. Install the seal using the proper tool.
C. Borg-Warner transfer cases (K30 with dual rear wheels): Use J 37668-A.
2. Transfer case shield.
3. Propeller shaft yoke.
4. Flat washers and nut (if used).
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Tighten:
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Borg-Warner front propeller shaft yoke nut to 225 Nm (165 ft. lbs.).
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Borg-Warner rear propeller shaft yoke nut to 170 Nm (125 ft. lbs.).
5. Propeller shaft.
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Check the transfer case oil level and add oil if necessary.
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Lower the vehicle.
