The topic involves the difference between 1300 series u joint the 3RL (S44) joint. I can find dimensions on all of them. However the size of the 3RL is measured differently than the 1300's because of snap ring placement. Comparison is difficult. The cap (cup) size is between the 1330 and 1350 sizes. The question is regarding strength. Would the GM 3RL strength lie in between the 1330 and 1350? Would it be able to handle 400-450 hp/torque?