Clutch Masters 89-98 Nissan Skyline 2.5L RB25DET/2.6L RB26DETT 725 PRO Series Twin Disc w/Steel FW
When a built RB26DETT or RB25DET Skyline is dumping power through the clutch on launches and the car lives at the drag strip or on track, a small, light twin disc is the usual answer. Clutch Masters 06045PTD7RS is the 725 PRO Series in the Twin Race stage for the 1989-1998 Skyline, sold as a complete conversion with a steel flywheel, release bearing and alignment tool. It is aimed at R32 and R33 owners who need a fast-revving drivetrain and holding power well past what a stock single disc can manage.
Instead of one large disc, this kit stacks two 7.25 inch rigid ceramic discs with a floater between them inside one cover. Two discs double the friction surfaces without a large diameter, so rotating mass stays low and the RB can pick up revs quickly between shifts. The Twin Race (PTD7R) stage has no sprung center, so engagement is direct and the driveline sees every bit of shock. That is the main difference from the larger 850 PRO twin disc for the same cars, which uses an 8.5 inch pack with a sprung disc.
The PRO redesign of the long-running FX725 uses twelve heat-treated 4140 steel stands on the pressure plate where the earlier unit had six aluminum posts. Clutch Masters says the aluminum posts could flex and wear under high horsepower, which is why the stands were doubled and moved to steel. The PRO units are built in the USA and are SFI certified. Clutch Masters gives an estimated torque capacity of 700 ft-lb for this part number.
Do a high-gear pull from low rpm and watch whether engine speed rises faster than the speedometer. Before blaming the disc, check that the slave and master cylinders hold pressure and the pedal returns fully, and look for engine oil from the rear main seal on the bellhousing, because oil soaks any friction. Our slipping diagnosis guide covers separating true clutch slip from other faults. Then be honest about use: a rigid ceramic twin disc chatters and bites hard. For a car that sees regular street miles, the 850 Series Street twin disc is the more livable choice.
Clutch Masters lists 06045PTD7RS for the 1989-1998 Nissan Skyline with the 2.5L RB25DET or 2.6L RB26DETT, push-style release only. That covers RB26DETT GT-Rs and RB25DET cars in that span. It is not listed for RB20DET cars, and pull-style conversions will not work with it. This is a conversion kit that will not bolt up with the factory flywheel; it works only with the Clutch Masters steel flywheel in the box. Because these are imported right-hand-drive cars, send the chassis code, engine, gearbox and production date before ordering if your car has a swapped transmission or is a late 1998 build. More drivetrain parts are in our rebuild kits department.
| Brand | Clutch Masters |
| Part number | 06045PTD7RS |
| Fits | Clutch Masters 89-98 Nissan Skyline 2.5L RB25DET/2.6L RB26DETT 725 PRO Series Twin Disc w/Steel FW |
| Vehicle fitment | Nissan Skyline (1989-1998) |
| Type | Clutch Kits - Multi |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. Clutch Masters lists 06045PTD7RS only for 1989-1998 Skylines with the push-style RB25DET or RB26DETT.
No. It is a conversion kit built to work only with the Clutch Masters steel flywheel, which is included along with the release bearing and alignment tool.
Clutch Masters rates this Twin Race kit at an estimated 700 ft-lb. If you are past that, look at a larger multi-disc kit instead.
It can be driven on the street, but the two rigid ceramic discs engage abruptly and rattle at idle. It suits drag and track cars better than daily drivers.
Replace the pilot bushing, flywheel bolts and pressure plate bolts, and check the slave cylinder, release fork and rear main seal while the gearbox is out.
The PRO uses twelve 4140 steel pressure plate stands instead of six aluminum posts, which Clutch Masters says handles more torque, heat and abuse.
