185MM TB48 SPRING P2

Technical Parameters

Product Advantage

• Twin-Plate Torque Capacity with Real Torsional Damping

This 185mm twin plate clutch with spring hub​ pairs four ceramic friction faces with arc springs built into the disc centre. The springs absorb drivetrain shock before it reaches your gearbox, transfer case and axles — the components that actually fail when a tuned Patrol launches hard. You keep competition-grade holding power while protecting a driveline never designed for double the factory 420 Nm output.

• Replaces the Damping Lost with a Lightweight Flywheel

Upgrading to a performance single-mass flywheel sharpens response but removes the torsional damping the original setup provided. The spring-loaded hub​ in this twin disc ceramic clutch restores that cushioning at the disc, absorbing the vibration that would otherwise rattle the gearbox at idle and load the transmission on every shift. It is the missing piece in most lightweight-flywheel conversions.

• Wide Disc Spacing for Sustained Low-Speed Slip

Unlike a triple plate, a twin plate keeps generous air gaps between friction faces — critical for the way a Patrol is actually driven. Rock crawling, hill holds, boat ramps and towing all mean slipping the clutch at low rpm for extended periods. This 7.25 inch twin plate clutch​ sheds that heat far better than a stacked three-disc design, resisting fade where tighter stacks cook.

• Ceramic Heat Resistance, Now Usable on the Road

Sintered ceramic-metallic friction material holds a stable coefficient through repeated launches and high-temperature operation where organic discs glaze. Adding a spring hub centre​ makes that performance genuinely drivable: take-up is less abrupt, idle rattle drops noticeably, and the engagement window widens enough to tolerate imperfect rev-matching in traffic — without sacrificing any torque capacity.

• Low Rotational Inertia for a 2.5-Tonne 4WD

A compact 185 mm package with a forged 4140 chromoly flywheel cuts rotational inertia dramatically versus a large-diameter single plate of similar capacity. The result is faster rev-matching, sharper throttle response out of soft sand, and less shock loading on the gearbox. For a heavy Patrol fighting for momentum, that responsiveness is worth more on the trail than raw clamping force alone.

Product Uses

• High-Power Street Patrol (500–800 hp)

This is the sprung triple plate's core market: a heavily turbocharged or supercharged TB48DE that still gets driven on the road. You need the torque capacity of a triple plate, but a rigid race clutch would make traffic unbearable and put the gearbox at risk. The sprung hub triple disc clutch​ holds the power while keeping take-up civil enough for real-world driving.

• Rally Raid & Cross-Country Competition

Long-distance desert events combine high-speed running with sudden load changes — landing after a jump, hitting a washout, powering through soft sand. Those load reversals shock the driveline. The sprung hub cushions exactly that, protecting the transfer case and diffs over hundreds of kilometres, while six friction faces handle the sustained torque a fully loaded Patrol demands.

• Drifting & Club Motorsport

Drift and club racing involve repeated clutch kicks and rapid load transitions. Rigid hubs transmit every shock into the transmission; this 185mm triple plate clutch with sprung centre​ absorbs it, letting drivers use clutch kicks more freely without destroying driveline components — while the ceramic faces handle the heat of continuous abuse.

• Desert Racing & Dune Competition

Fast desert running loads the clutch hard but rarely holds it in sustained low-speed slip, which suits a triple plate well. The damper helps on hard surface transitions and landings, and the low rotational inertia of the compact 185 mm package keeps the engine responsive when you need instant torque out of soft sand.

• Towing & Heavy-Load High-Power Builds

A tuned Patrol towing a large caravan or boat places enormous strain on the clutch at hill starts. The triple plate provides the holding capacity; the sprung hub prevents the driveline snatch that otherwise makes loaded take-offs violent. This combination suits expedition and tour operators running high-output engines with heavy trailers.

FAQ