McLeod 6405504HD RXT 1200 Twin Disc Clutch Kit with Steel Flywheel GM LS-X 6-Bolt 168T 1-1/8x10

The McLeod RXT 1200 Street Twin Disc Clutch Kit (6405504HD) is a complete, high-performance clutch solution engineered for GM LS-X engines with a 6-bolt crankshaft flange. Rated to handle up to 1,200 horsepower, this kit delivers the higher clamp load needed for serious street/strip builds while maintaining the driveability expected of a daily-driven vehicle. This version is designed for the 1-1/8" x 10-spline input shaft with a 168-tooth flywheel ring gear.

Key Features:

• 1,200 HP rated twin disc design with higher clamp load than the standard RXT
• Ceramic-lined friction discs deliver smooth engagement and excellent holding power over organic linings
• Billet steel flywheel included — ideal for street and street/strip applications
• Low rotating mass for improved throttle response and drivetrain efficiency
• Smooth engagement with excellent release qualities for a near-stock pedal feel
• Compatible with GM 1997–2013 LS-X engines with 6-bolt crankshaft flange
• 168-tooth ring gear, 1-1/8" x 10-spline input shaft fitment
• Zero balance (0 bal) flywheel for externally balanced LS-X applications

Kit Includes:

• Pressure plate
• Two ceramic friction discs
• Floater plate
• Billet steel flywheel
• Pilot tool / alignment tool

The RXT 1200 is a complete, plug-and-play unit — no need to source a separate flywheel. McLeod packages the dedicated billet steel flywheel with the clutch assembly under a single part number, simplifying installation and ensuring proper component matching. The ceramic disc facings increase clamping force over comparable organic linings while maintaining streetable engagement characteristics.