Soft Lok: Ford 1969-78 BBF 429/460: 10.5 x 1-3/16 x 18 Spline: 176T: Aftermarket Transmission
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 |
| 1969-1972 |
Ford Custom |
| 1973 |
Ford Custom 500 |
| 1978 |
Ford E-100 Econoline |
| 1975-1978 |
Ford E-250 Econoline |
| 1975-1978 |
Ford E-250 Econoline Club Wagon |
| 1975-1978 |
Ford E-350 Econoline |
| 1977-1978 |
Ford E-350 Econoline Club Wagon |
| 1973-1974 |
Ford F-100 |
| 1975-1978 |
Ford F-150 |
| 1973-1978 |
Ford F-250 |
| 1973-1978 |
Ford F-350 |
| 1970 |
Ford Falcon |
| 1969-1973 |
Ford Galaxie 500 |
| 1969-1973 |
Ford LTD |
| 1969-1971 |
Ford Mustang |
| 1970-1971 |
Ford Ranchero |
| 1975-1977 |
Ford Ranchero |
| 1970-1974 |
Ford Torino |
| 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 |
1969-1978 BBF |
| 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.) |
1.188 |
| Input Spline Quantity |
18 |
| Life Cycle Status Code |
Available to Order |
| Make |
Ford, Ford |
| NAFTA Preference Criterion Code |
B |
| Note |
Aftermarket Transmission |
| Number of Discs |
Single |
| Pilot Bushing Included |
No |
| Pressure Plate Style |
Long |
| Quantity |
Sold as a kit. |
| Racing Application |
Drag Racing |
| Ring Gear |
176 tooth |
| Ring Gear Tooth Quantity |
176-tooth |
| SDR Required Flag |
N |
| SDS Sheet Number |
N/A |
| Spline |
1 3/16In. x 18 |
| Throwout Bearing Included |
No |
| Warranty Time |
90 |
| GTIN |
00887753673329 |
