If it were me I would weld a small piece of steel over the existing holes and drill through that for the proper hole size. Is the diameter of the spacers big enough they want try get off canter into the 5/8" holes?
Or is there room to drill new holes in and around the existing? For strength you need to have enough steel around the hole equaling the radius of the hole your drilling.
Or is there room to drill new holes in and around the existing? For strength you need to have enough steel around the hole equaling the radius of the hole your drilling.




