You can run Any stock bearing in there. The pin that goes into the bearing is the same. The pin that goes into the ARM however, is smaller on the TG's than the rest, and are known to break right there. In true TG fashion, they did not solve this problem when they went to the Trunnion Eliminators.
You will have trunnion issues with any brand bearing you go. It seems the Timkens and Koyo's seem to hold up the best. The only real solution is the 25mm upgrade.
