This is a Left Hand Thread 8 TPI 2 eared, 42 mm spline that was used on many different applications. These knocks are correct for the following cars:
- Austin Healey BJ8 from (c)26705
- Austin Healey Sprite 1966 to 1969
- MGB Convertible from RD from (c)30850 About 1965 to 1980
- MG Midget 1966 to 1979
- Triumph TR3, TR4, TR4A
- Triumph TR250, TR6
- Triumph Spifire 1962 to 1980
