If you want to spin rod bearings, use aftermarket bearings and shave the crank. If your machine shop told you to do that stop using them as they don't know what they are talking about.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.