Soft Lok: Mopar 1964-78 340/383/440 6 Bolt Crank: 10.5 x 1 x 23 Spline: 143T
The McLeod Soft Lok assembly is the most widely used McLeod clutch for drag racers. This unit is NOT recommended for street use. As a NHRA and IHRA record holder, this assembly has low static pressure for a light pedal effort and soft clutch engagement. This unit leaves the starting line harder with less tire spin. The Soft Lok is equipped with adjustable spring pressure and is available with counterweights. Included is a pressure plate, sintered iron disc, and aluminum flywheel.
  • • Low Static Pressure. • Soft Clutch Engagement. • Leave Line Harder with Less Tire Spin. • Adjustable Spring Pressure. • Available with Counterweights.

Application Summary:

Year Make/Model
1964-1969 Chrysler 300
1965-1971 Chrysler Newport
1964-1965 Dodge 880
1974 Dodge B100 Van
1975-1978 Dodge B200
1975-1978 Dodge B300
1974 Dodge B300 Van
1977-1978 Dodge CB300
1970-1973 Dodge Challenger
1966-1974 Dodge Charger
1965-1966 Dodge Coronet
1970-1976 Dodge Coronet
1975-1978 Dodge D100
1968-1971 Dodge D100 Pickup
1973-1974 Dodge D100 Pickup
1967 Dodge D100 Series
1978 Dodge D150
1975-1978 Dodge D200
1968-1971 Dodge D200 Pickup
1973-1974 Dodge D200 Pickup
1967 Dodge D200 Series
1968-1974 Dodge D300 Pickup
1967 Dodge D300 Series
1967-1973 Dodge Dart
1965-1971 Dodge Monaco
1964-1971 Dodge Polara
1974-1978 Dodge Ramcharger
1975-1977 Dodge W100
1968-1971 Dodge W100 Pickup
1973-1974 Dodge W100 Pickup
1967 Dodge W100 Series
1978 Dodge W150
1975-1978 Dodge W200
1968-1971 Dodge W200 Pickup
1973-1974 Dodge W200 Pickup
1967 Dodge W200 Series
1975-1978 Dodge W300
1968-1974 Dodge W300 Pickup
1967 Dodge W300 Series
1967-1973 Plymouth Barracuda
1964-1970 Plymouth Belvedere
1970-1973 Plymouth Cuda
1970-1973 Plymouth Duster
1964-1967 Plymouth Fury
1975 Plymouth Fury
1977-1978 Plymouth Fury
1972-1974 Plymouth Gran Fury
1968-1971 Plymouth GTX
1968-1974 Plymouth Road Runner
1965-1974 Plymouth Satellite
1964 Plymouth Savoy
1970-1973 Plymouth Valiant
Attributes
Alignment Tool Included Yes
Clutch Disc Quantity 1
Clutch Usage Performance
Counterweight Assist Yes
Country of Origin (Primary) US
Crankshaft to Flywheel Bolt Quantity 6-bolt
Disc Diameter 10.5In.
Disc Diameter (in.) 10.500
Disc Material Sintered Iron
Disc Style Full face
Emission Code Legal US
Engine 1964-1999 SBC/BBC
Engine Balance Internal Balance, Internal
Flywheel Included Yes, Yes
Flywheel Material Aluminum, Billet aluminum
Hardware Included Yes
Harmonized Tariff Code (Schedule B) 8708935000
Hazardous Material Code N
Hub Style Solid, Solid
Input Shaft Diameter (in.) 1.000
Input Spline Quantity 23
Life Cycle Status Code Available to Order
Make Mopar, Chrysler
NAFTA Preference Criterion Code B
Number of Discs Single
Pilot Bushing Included No
Pressure Plate Style Long
Quantity Sold as a kit.
Racing Application Drag Racing
Ring Gear 143 tooth
Ring Gear Tooth Quantity 143-tooth
SDR Required Flag N
SDS Sheet Number N/A
Spline 1In. x 23
Throwout Bearing Included No
Warranty Time 90
GTIN 00887753673336