1991 Chevy 2500 4×4 Fuse Box Diagram 1991 Chevy 2500 4×4 Fuse Box Map Fuse Panel Layout Diagram Parts: axle tube, bolt, thrust washer, gear, snap ring, sleeve, output shaft, carrier case, fill plug, output shaft, deflector, seal, bearing, indicator switch, spring, clip, bolt, washer, deflector, pilot bearing.