1977 GMC Suburban Axle Shaft Assembly K15 Suburban - 4WD - Dana 44 - Front Axle Kit - 4340 Chromoly - 30 Spline inner axles, 19 Spline outer stub axles, and Yukon Super Joints - Front guaranteed to replace your current 1977 GMC Suburban Axle Shaft Assembly K15 Suburban - 4WD - Dana 44 - Front Axle Kit - 4340 Chromoly - 30 Spline inner axles, 19 Spline outer stub axles, and Yukon Super Joints - Front. 1977 GMC Suburban Axle Shaft Assembly comes new OEM 1977 GMC Suburban Axle Shaft Assembly aftermarket new 1977 GMC Suburban Axle Shaft Assembly of remanufactured 1977 GMC Suburban Axle Shaft Assembly K15 Suburban - 4WD - Dana 44 - Front Axle Kit - 4340 Chromoly - 30 Spline inner axles, 19 Spline outer stub axles, and Yukon Super Joints - Front.