find a early R160 clutch type and use the 510 stubs. one day install.
I had a extra I bought for 200 and later sold for 400 as I wasn't using it. however THEY ARE 3.70 gear ratio good for the Hiway.
I only like tthem when I turn the wheel hard and hit the gas so I can spin the car around.
Takeoffs of better at a light when wet.
The Cool factor of telling somebody you have one is the MONEY SHOT of it really. I got a LSD. Oh wow your so cool.
If you have a high power car it might make driving harder if one don't know how to drive(spin car around)