Check the listing for details. Engine Motor Mounts & Auto Trans. Mount 3Pcs Set for Chevrolet Silverado 2500 HD. Condition: New. Listed at 76.00 USD. Engine Motor Mounts & Auto Trans. Mount 3Pcs Set for Chevrolet Silverado 2500 HD Item Description Placement: 3176 - Front Left Engine Motor Mount 3176 - Front Right Engine Motor Mount 2839 - Rear Transmission Mount Compatibility: Chevrolet Avalanche 2500 02-03 V8 8.1L, 4 Wheel Drive (4WD), Rear Wheel Drive (RWD) For Both Automatic & Manual Transmission Chevrolet Avalanche 2500 04-06 V8 8.1L, 4 Wheel Drive (4WD) For Both Automatic & Manual Transmission Chevrolet Silverado 2500 HD 01-06 V8 8.1L, 4 Wheel Drive (4WD), Rear Wheel Drive (RWD) For Both Automatic & Manual Transmission Chevrolet Silverado 2500 HD CLassic 2007 V8 8.1L, 4 Wheel Drive (4WD), Rear Wheel Drive (RWD) For Both Automatic & Manual Transmission Chevorlet Silverado 3500 01-06 V8 8.