Upon closer inspection of my new 525, one of the booms had filled with water and then froze and busted. When I first spied the hoist, I planed on straightening and replacing some of the angle iron bracing to make it look good and straight, but now I am thinking of round or box steel booms. I do not like the look of the pictured boxed over angle, etc. in the wrecker pictured.
Not sure what they did back in the day when they repaired or replaced them, but I think I have seen this style with 4x4 box iron booms. Maybe that was a 600, or similar.
Maybe DOM tubing. 4 or 5 inch. Might break the bank. Will do some checking...
Anyway, thanks for the comments.
BaconFarms