I am repairing the body-frame mount holes in my frame. the original diameter for the hole appears to be 1.5 inch (the same as a 1 3/8" uss flat washer) Gbody parts sells a repair washer for 8 bucks, but the fastenal store sells the flat washer for 1.25 is there a reason to use gbodyparts washer? I know they advertise and support the forum but.....