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Re: New Avalanche owner, questions
It doesn't make any noise in 2wd, but 4wd hi it does between 2 and 10ish like you describe. My theory is either there is not Auto Trak II fluid and the clutches are not grabbing, or the actuator is not going full stroke and not applying full force to the clutches
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1979 K10 reg cab short bed 33x12.50s - GONE
1988 4x4 reg cab long bed 337k miles - GONE
1995 Z71 GU6 G80 F44 ext cab short bed 149k 305/70/16s - GONE
1995 NZZ GT4 2dr Tahoe 3" lift 14 bolt sf 155k 305/70/16s - GONE
1994 Z28 M6
1995 Z71 GT4 G80 ext cab short bed 215k GONE
1997 GT4 G80 Yukon 4 door leather, sunroof 168k miles GONE
2003 Avalanche Z71 GT4 G80 165k miles
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