The Centerforce 412753018 SST (Solid Street Twin) kit is a complete twin-disc clutch and flywheel package for 1965-1972 Dodge and Plymouth cars, including Challenger, Charger, Coronet, Barracuda, GTX and Road Runner, with 8-bolt crank 426 Hemi and 440 engines. It puts two 10.4 in. organic discs and a floater plate behind a lightened billet steel flywheel, giving big-torque street cars a high holding capacity with lighter pedal effort and quicker revs than a heavy single-disc setup, with no shimming or setup adjustments required.

Centerforce 412753018 Technical Specifications:

• Twin 10.4 in. solid-hub organic discs with a floater plate and the Centerforce anti-rattle system.
• Lightened billet steel flywheel with a 130-tooth ring gear (13.205 in. O.D.) for an 8-bolt crankshaft flange.
• Discs fit a 1-3/16 in. input shaft with 18 splines.
• Holding capacity is rated up to 925 ft.-lbs., built for engines making roughly 400 ft.-lbs. and up.
• 8-bolt flywheel locates on the crank lip rather than the flange O.D., for Hemi and wedge engines.
• Solid-hub discs reduce rotating weight on the input shaft for quicker shifts, though some gear noise is normal.
• Includes the pressure plate, two discs, floater, billet flywheel, alignment tool and ARP pressure plate and flywheel bolts.
• Complete kit weighs 46.10 lbs.