ACT 1988 Toyota Supra HD/Perf Street Sprung Clutch Kit
The ACT TS3-HDSS is the daily-driver upgrade for a naturally aspirated Toyota Supra or a manual Lexus SC300. If your non-turbo Supra has started to flare in RPM when you pull hard in fourth, shudders as you let the pedal out in a parking lot, or simply has the original clutch at high mileage, this kit replaces every wear part in one box. It combines ACT's Heavy Duty pressure plate with its Performance Street organic disc, so the car keeps a near-stock pedal and smooth takeoff while gaining extra holding power for intake, exhaust and tuning upgrades.
The inline-six bolts to the flywheel, and the pressure plate squeezes the disc between the flywheel and its own face so torque flows into the five-speed input shaft. When the diaphragm spring weakens or the facing wears thin, clamp load drops and the disc slips. ACT rates the TS3-HDSS at 285 ft-lb at the crank, which it lists as 32 percent over the factory clutch. That is a sensible margin for a stock or lightly modified NA engine without the harsh feel of a race disc.
Specifications from ACT:
In the box: T021 Heavy Duty pressure plate, 3000604 Performance Street sprung disc, RB443 release bearing, PB1004 pilot bearing and AT11 alignment tool. No flywheel is included.
A soft or sinking pedal is usually hydraulic, not the disc, so check the master and slave cylinder and bleed the line first. Then do a simple slip test: in fourth gear at low RPM, go to full throttle and watch whether the tachometer jumps ahead of road speed. Our slipping diagnosis guide walks through separating real slip from other drivability faults, and the clutch chatter guide covers oil contamination and worn mounts that cause judder even with a good disc.
Our listing is titled for the 1988 Supra, but ACT's application chart for TS3-HDSS covers more cars: the 1988-1992 Supra base with the 2954 cc naturally aspirated six, the 1993-1997 Supra base with the 2997 cc naturally aspirated six, and the 1992-1997 Lexus SC300. It does not fit the turbocharged Mk3 Supra; that car uses ACT's TS2 series, such as the TS2-HDSS. Transmission swaps change the answer, so measure your old disc and count the input spline, or send us your year and VIN and we will confirm. More kits are in our rebuild kits section.
This is the comfortable choice in the TS3 family. If the engine makes far more power than stock, the TS3-XTG6 holds 450 ft-lb but brings a much heavier pedal and abrupt six-pad engagement that most commuters will not enjoy.
| Brand | ACT |
| Part number | TS3-HDSS |
| Fits | ACT 1988 Toyota Supra HD/Perf Street Sprung Clutch Kit |
| Vehicle fitment | Toyota Supra Hd/Perf (1988) |
| Type | Clutch Kits - Single |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. TS3 kits are for the naturally aspirated Supra and the SC300. The turbo Mk3 uses ACT's TS2 series with a larger disc.
ACT's chart lists the 1993-1997 naturally aspirated Supra and the 1992-1997 SC300. If the car has had a transmission swap, send us the year and VIN so we can check.
No. The kit includes the pressure plate, disc, release bearing, pilot bearing and alignment tool. Resurface the stock flywheel or replace it.
ACT describes the TS3-HDSS as light to moderate pedal effort with smooth engagement, so it stays close to factory feel.
Drive normally for the first few hundred miles and avoid hard launches or long slipping so the disc and flywheel bed in evenly.
