you can use a pice of 3/8 keystock also or square cold roll, that's what I used on mine cause I didn't have anything else handy... at 3 am.... at -30 degrees.... in a blizzard....after a mechanic told me it was worn out....
I'd like to think I'm the guy they are talkin about when they say, "he could F%^& up a cannon ball in a plowed field."
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