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Alkydigger LS Chevy billet crankshaft single bolt mandrel w 16 mm bolt
Bolts directly into a LS crankshaft threads , and centers on any balancer with a 2" Balancer register please measure - if yours is not 2" Then we will have to use our 3 bolt setup
1" OD with 1/8th " keyway
All our 1" ID Pulleys fit this mandrel see related items below listing for pulleys
Overall length of mandrel less bolt is 4.53"