I just buzz mine on with a 1/2" impact with a 1/2 to 3/4 adaptor on a 2 1/8" socket. I had to develope a feel for how much impacting it required to remove a flywheel nut. Then I just buzz them on until they seem tight enough. Not very scientific at all, but it has worked fine even without thread lock or bending washer edges (on the older flywheels).