I have arp hub studs, and knuckle studs. I have broken 3 arp studs, cant say anything about stock, because I never ran em since I upgraded to bigger tires. I would do bobbys dowel mod over the hub studs, more studs is better than stronger ones IMO. Also do the 5th stud, its easy and well worth the piece of mind, if I had done it to my marlin arms, not just my tg ones, maybe this wouldnt have happened
If that is a Marlin arm it can be fixed, you press out the old pin and install a new one. I broke one on my six-hole Marlin arm and was going to do it but I upgraded to the 25 mm instead.