Hellow everyone ,for my 1939 chevy 1.5 ton truck i just put larger lug bolts to fit bigger rims . i went from a 9/16 to a 5/8 bolt on the front only. after driving for 50 miles the front lug nut start to loosen this only started to happen after i did the lug bolt change . i use the same impact wrench and settings for all my vehicles for years , this is the first time i have had any issues. thank you 1pete1