Yeah, I replaced them both. If one rusted away enough to snap, the other was probably not far behind it.

Total cost of replacement: $13. New poly bushings, bolts/locking nuts, spacers, and washers.

I think the bolt on these is 3/8"x6". If these break in a year, I'm going up to 7/16".

 

Probably need to get some galvanized boltsand hardware too

 

It is all galvanized. So it might last two years.