ACT 1988 Toyota Supra XT/Race Sprung 6 Pad Clutch Kit
The ACT TS3-XTG6 is a high-clamp clutch kit for the naturally aspirated Toyota Supra and the Lexus SC300 with a manual gearbox. If your non-turbo 1988 Supra slips in third or fourth when you lean on it, chatters as it hooks up, or you have added power that the stock clutch can no longer hold, this is the kit built for that job. It pairs ACT's Xtreme pressure plate with a six-pad, spring-centered ceramic race disc, so it is aimed at drivers who want holding power first and accept a firmer pedal.
The clutch is the only link between the inline-six and the five-speed. The pressure plate clamps the disc against the flywheel; when the clamp load or the friction surface falls short, the engine spins faster than the input shaft and you feel slip. ACT rates the TS3-XTG6 at 450 ft-lb at the crank, which it lists as 107 percent more than the factory clutch. The disc is 236 mm (9.3 in) across with a 1.125 in input spline, and the assembly weighs about 17.3 lb, close to stock.
What is in the box, per ACT's kit list:
There is no flywheel in this kit.
Rule out hydraulics first: a weak master or slave cylinder or air in the line gives a soft pedal and poor release that looks like a worn clutch. Check pedal free play and the fluid level, then do a slip test in a high gear at low RPM. Our transmission slipping diagnosis guide covers how to separate true slip from other drivability faults, and automatic vs. manual repair cost helps you weigh the job against shop labor.
Our listing is titled for the 1988 Supra. ACT's own application chart is wider: 1988-1992 Supra Base with the 2954 cc naturally aspirated six, 1993-1997 Supra Base with the 2997 cc naturally aspirated six, and 1992-1997 Lexus SC300. It is not the turbo kit. The 1986-1992 Supra Turbo uses ACT's TS2 series with a larger 240 mm disc, such as the TS2-XTG6. Engine swaps and replacement transmissions change the answer, so compare your old disc diameter and spline before ordering, or send us your year and VIN and we will check it. More options are in our rebuild kits section.
ACT describes this combination as moderate to heavy pedal effort with aggressive engagement, recommended for high horsepower street or race use, and its FAQ puts the pedal increase for Xtreme plates at roughly 50-80 percent depending on the car. The six-pad disc makes engagement harsher but shifts faster. For a daily-driven car with mild upgrades, the street-disc TS3-HDSS is the easier-to-live-with choice.
| Brand | ACT |
| Part number | TS3-XTG6 |
| Fits | ACT 1988 Toyota Supra XT/Race Sprung 6 Pad Clutch Kit |
| Vehicle fitment | Toyota Supra Xt/Race Sprung 6 (1988) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. ACT lists TS3 kits for the naturally aspirated Supra and the SC300. The turbo cars use the TS2 series with a 240 mm disc.
ACT's chart lists 1993-1997 Supra Base naturally aspirated and 1992-1997 SC300. Send us your year and VIN if your car falls outside that list or has had a transmission swap.
A flywheel is not included. Reuse the stock one only if it is free of cracks and heat damage; otherwise have it resurfaced to the correct step height or replace it.
ACT rates this combination as moderate to heavy. Its FAQ says Xtreme pressure plates typically raise pedal effort by about 50-80 percent, depending on the car.
It can be driven on the street, but the six-pad ceramic disc engages abruptly. Choose a street disc kit if the car is mostly a commuter.
