I did that on the first one, it was a Stanhoist loader on a John Deere A. It worked OK, just wasn't as neat looking as slotted.
A single tab setup won't work. They will bend. One on top and one on the bottom is the way to go. Put one set on each end, and one set in the center to keep from bending the pipe.
I've put pipes on 3 tractor loaders and on my homemade snowpusher. Leaves the gravel on the lane.
Just be careful not to put too much down angle or down pressure on the bucket for the first snowfall. You want to leave a little snow so it can pack into and on top of the gravel. Not a lot, just enough to cover it.