TSC CountryLine is made by King Kutter. They are a low cost solution, not high on the quality list.
You'll need to get something a bit stronger like
https://heavyhitch.com products.
https://heavyhitch.com/product/ripper-sub-soiler-potato-plow-middle-buster/
I have the low-end LMC box blade with the rippers. All I need to do is buy taller and thicker rippers, and it's good to go.
My collection of tractor attachments are a mix. Sure there are a few King Kutter items, but one needs to look them over first before buying. So far, not bad, but not the best.
I too have had a few JD attachments. And yes, those failed too. A JD-261 finish mower being one of them. Glad the day it finally died and I said good riddance. You name it, it broke on that mad machine.
I keep saying .... Someday, I'll engineer and make the ultimate multi-3PT attachment in SolidWorks, have it built and not needing to look back at the cheesy ones at the farm stores. I want a hay spear with folding spears, trailer ball, pallet forks, weight bar, and sub-soiler type tools all-in-one universal 3PT tool. The Heavy Hitch is so-so close, but has a few weak points.
https://heavyhitch.com/product/heav...r-garden-bedder-hiller-cultivator-attachments. I've seen a clever one sold for a little while in the EU. There is only 1 YT vid left of it. BUT, I plan to take it further.