Anyone else break rims on a 946?

We bought this tractor at a dealership for a steal yrs ago. The hour meter made everyone walk away. The biggest trouble I saw were that the rims that were on the triples and duals, were all previously the inner ones that bolted to the planetary hub. They all broke in a circle around the bolt pattern. They would buy new or rims from a wrecker and use the broken ones as rims for outer wheels. I think the rims from factory were 1/2" plate. Last spring after 8 yrs of use I had both rims on rear crack just before the end of seeding. Got them patched up to finish and got Prairie wheel  to make 4 rims that are 3/4" thick where they bolt to the planetary. $5000 for rims and at my buddies shop removing tires and making sense of all of it right now.  This tractor has huge weights at the rear where the hyd outlets are on either side and weights on the side where it articulates as well.  This unit stays hooked to the 5710 53" with a tow between 4300 yr round. I don't think I need the extra weights that are on the tractor with all the weight a tow between cart adds  to the rear but might be a pain removing them. When we bought the tractor it had 10,000hrs. It had almost new 20.8x42 firestone radial triples. Figured I would see what the engine bearings looked like and when I removed a cap I realized that the engine was just rebuilt. Diffs had been out as I could tell from the silicone and the tranny as well. It was a hutterite tractor bought from a farmer by Rosetown who traded it in for an Agco 425 I found out. I talked with him and he said that he wished he had the 946 back as it pulled as good or better with the pump cranked up than his newer one. Any way $38,000 for this workhorse and it's first repair in the 8 yrs we owned it made this cheap power. Again both 935 and 946 are surrounded by newer stuff getting tires etc and people saying who's old iron is that lol.  Anyone else break their rims?