Probably easier to drill blade carrier. A magnetic drill helps.When my blade wears out - I have a new blade from a road grader to replace it with. It's about five times heavier than the Land Pride OEM blade. My only concern - drilling new holes in the blade carrier. The road grader blade is so thick - it would take forever to drill new holes in it. The grader blade has plenty of existing holes - none line up with the blade carrier on the Land Pride.
Very niceI have a new BEFCO I'll try to remember and measure it and take a pic where the blade is on the carrier. I haven't changed the adjustment and it does an amazing job. Did this job about 4 weeks ago. This was the smaller of the potholes and it was much worse than the pic reveals. This was a 900ft. drive I did for some folks, they were happy.
That's the way I did it once, a few years ago. I tried squaring up the new holes so the carriage bolts would set but soon decided cutting the corners off of the carriage bolts was easier. Then decided using a regular bolt would be good enough.Right - Smokeydog. But I don't have access to a mag drill. What I will do as an alternate. Remove the OEM blade. Tightly clamp the road grader blade to the carrier. Drill thru the existing hole in the grader blade and make new holes in the carrier.
In other words - use the grader blade as a guide for new holes in the carrier. Exactly as you have indicated.