Question: what is the difference between a 1310 and 1350 u joint?
Answer: While the front and rear u-joint can be of two different sizes the shaft is only as strong as the smaller one. The 1310 series u-joint measures approximately 3 1/4 inches wide. ... The 1350 series has a cap diameter of 1 3/16 inch and the body and journals are bigger than the 1310 or 1330.