I found these 1 1/4" (cross-section) shackles (galvanized cast iron) on sale at the Hot Springs AR off-road park, and they turned out to be perfect for my new bumper.

Rated for 12 tons WLL each. I'll try, but I don't think I'll get that high.

UPDATE: I've gone that high a few times now, stalling the 12,000-lb winch with a snatch block. But that force was never applied to these shackles.

Owner caption October 2011 · Photo 3943 of 5000