1988 Chevrolet K3500 Bore: 3.1563 In.; Position: Front;. 1989 Chevrolet K3500 Bore: 3.1563 In.; Position: Front;. 1990 Chevrolet K3500 w/Single Rear Wheel (SRW) | Bore: 3.1563 In.; Position: Front;. 1991 Chevrolet K3500 w/Single Rear Wheel (SRW) | Bore: 3.1563 In.; Position: Front;.