ACT 12-18 Jeep Wrangler JK XACT Flywheel ProMass

Confidence-inspiring momentum over obstacles, excellent for large tires, rock crawling, or towing, reduced driveline slop compared to dual-mass, no gear rattle; Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life;One piece construction provides an efficient heat sink for the clutch and less chance of failure. Eliminates troublesome dual-mass design, warped inserts or loose ring gears;Recommended for street and off-road use;Forged, CNC machined and dynamically computer balanced for smoothness and reliability