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Alkydigger LS Chevy Billet Crankshaft Single Bolt Mandrel With 16MM GRADE 10 Bolt.
Bolts Directly Into A LS Crankshaft Threads & Centers On Any Stock Balancer.
Mandrel Has A 2.120" Male Register On The Back Of It, To Register Into The Center Of Your Balancer.
Plenty Of Material On The Back Side Of Mandrel To Turn Down Register In A Lathe To A Smaller Size.
1" OD Shaft With 1/8" 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"