inserts for loop on rear rims

[Don McCombs]

I don't think my tractor has inserts, or even a place for them. My rims are attached with carriage bolts (1/2" as I recall).

Then, you likely have the new style aftermarket rims like these…
http://www.tmtractor.com/new/wh/724fp.htm

[Crimson Tim]

If you are considering any repair option including a welding process, be aware that that the rims were originally galvanized to create that silver finish. It’s not clear how much of that original finish is left, but welding on galvanized steel releases extraordinarily toxic fumes.
I am often looking for excuses to practice my feeble welding skills, but in this case, I wouldn’t take a chance. Stick with mechanical fasteners. If you replace the broken piece, drill out the rivets and replace with same.

[MiCarl]

I don't think my tractor has inserts, or even a place for them. My rims are attached with carriage bolts (1/2" as I recall).

Then, you likely have the new style aftermarket rims like these…
http://www.tmtractor.com/new/wh/724fp.htm

I replaced one of the rims with an aftermarket because the tractor came with an A rim on one side. Just looked and the rims appear identical so I think the other one probably was replaced by someone else.

Is there any reason the OP couldn't just use carriage bolts in the originals rather than messing with putting in the insert?

[Barnyard]

Is there any reason the OP couldn't just use carriage bolts in the originals rather than messing with putting in the insert?

The old style loop has a 3/4" inch opening for the bolt had. The new style loop takes a half inch carriage bolt which has a 1/2" square under the head. It would not grip in an old style loop and would just spin when you try to tighten it.