I use a 3/8 inch impact gun. the torque is 40ftlbs or tight enough that it wont come loose. I don't recommend a 1/2 inch impact too much power. I also use blue Loctite on the threads for back up. If you don't have air tools or a cordless impact I guess this is the best way to get in done.
Last edited by Johnny 5; 06-27-2013 at 08:12 PM.
Reason: add more info
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