1994 GMC Yukon Drive: 4WD; Engine: 5.7L V8; w/3.42 Axle Ratio; w/3.73 Axle Ratio; w/4.10 Axle Ratio; w/4.56 Axle Ratio; Position: Inlet (Upper);. 1995 GMC Yukon Drive: 4WD; Engine: 5.7L V8; w/3.42 Axle Ratio; w/3.73 Axle Ratio; w/4.10 Axle Ratio; w/4.56 Axle Ratio; Position: Inlet (Upper);.