South Bend SBC13125-OFEK clutch kit with upgrade 13 inch flywheel, uses stock 1 1/4" input shaft. Rated 475HP/1000TQ. Fits 1988-2004 NV4500 5 speed and 1999-2000.5 6 speed (non H.O.) **Won't fit 2001+ 6 speed.
13125-OFEK ---- 13" half Organic half Feramic clutch kit w/ flywheel 475 hp 1000 trq 25k towing capacity Not recommended for stock applications
Ft-Lbs: 475hp, 1000 torque
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