Moroso 63860 Dry Sump & Vacuum Pump Drive Kit for GM LS Engine - Flange Style | High Performance Racing & Engine Build Applications

Steel 3 Inch long, Drive Mandrel. 3 Bolt flange type mandrel, fits ATI Balancer. Kit comes complete with mounting hardware, pulleys and spacers.

Bolts to balancer–balancer does not need to be drilled like older designs Pulleys are hard coat anodized and mandrel is black oxide for exceptional strength and extended service life Kits include one-piece, forged steel drive mandrel, 4" V-belt pulley for alternator, 2-1⁄2" V-belt pulley for vacuum pump, 1" (16 tooth) Gilmer pulley for external oil pump, guide plates, assorted spacers, belt guides and hardware