Generally
Front left has 1/2″ UNF left hand threaded wheel studs. Unfortunately we are out of these and we are replacing them with these right hand threaded 1/2″ UNF wheel bolts. They are originally mounted on e.g. 1960 both right and left front.
If you replace the rear left wheel bolts with BRO-1926-1, you have right-hand threaded wheel bolts for all 4 wheels.
Do not forget that you must replace the wheel nuts with right-hand threaded BRO-1926