Save time removing crankshaft rear seals, preventing damage to the block and crank. Prying the crankshaft seal out can damage expensive engine components. This seal remover is a special puller with three jaws designed to grab the inner lip of the seal. The forcing screw attached to the center plate is used to react against the crankshaft end to pull the seal out. This eliminates damage to the block and crank that prying the seal can cause. Applications include GM 6.6L Duramax diesel engines found in: 2001-Later GMT800 platform vehicles, including Chevrolet Silverado and GMC Sierra 2500HD, 3500; 2001-Later GMT900 platform vehicles, including GMC Sierra HD and Chevrolet Silverado HD; 2006-2016 Chevrolet Express, GMC Savana