1980 GMC Suburban Ring and Pinion Set K1500 Suburban - 4WD - Dana 44 - Standard Rotation - 4.88 Ratio - Thick Ring and Pinion Set - 26 Spline Pinion - Fits 3 Series Carrier - Double Drilled Ring Gear for 3/8in. and 7/16in. Bolts - Front guaranteed to replace your current 1980 GMC Suburban Ring and Pinion Set K1500 Suburban - 4WD - Dana 44 - Standard Rotation - 4.88 Ratio - Thick Ring and Pinion Set - 26 Spline Pinion - Fits 3 Series Carrier - Double Drilled Ring Gear for 3/8in. and 7/16in. Bolts - Front. 1980 GMC Suburban Ring and Pinion Set comes new OEM 1980 GMC Suburban Ring and Pinion Set aftermarket new 1980 GMC Suburban Ring and Pinion Set of remanufactured 1980 GMC Suburban Ring and Pinion Set K1500 Suburban - 4WD - Dana 44 - Standard Rotation - 4.88 Ratio - Thick Ring and Pinion Set - 26 Spline Pinion - Fits 3 Series Carrier - Double Drilled Ring Gear for 3/8in. and 7/16in. Bolts - Front.