1988 Chevrolet Suburban Ring and Pinion Set V20 Suburban - 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 4.56 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear guaranteed to replace your current 1988 Chevrolet Suburban Ring and Pinion Set V20 Suburban - 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 4.56 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear. 1988 Chevrolet Suburban Ring and Pinion Set comes new OEM 1988 Chevrolet Suburban Ring and Pinion Set aftermarket new 1988 Chevrolet Suburban Ring and Pinion Set of remanufactured 1988 Chevrolet Suburban Ring and Pinion Set V20 Suburban - 4WD - GM 10.5 in Rear - w/ 14 Bolt Cover - 4.56 Ratio - Thick Ring and Pinion Set - Fits 3 series 4.10 & Down Carrier - Rear.