That seal is a common size. I have seen those rock hard seals and will not use. Helpful hint buy a box of disposable gloves. Pay attention to direction of seals. Gord Souter likes to drill an additional hole for grease. I just pre pack tube with grease. Figure full tube per side. If You have to force it back together You are doing it wrong. On assembly You need to turn shaft as it enters bearing. **Funny memory** I really f'd up Cigar Guy.His shaft got rust and would not slide easily out of tube. I smacked with brass hammer. We put it back together and on his way he went. I put a bit of a mushroom on end of shaft, so after installing assembly in car, prop drive shaft would not slide on. Ooops! Stuff like that seems to happen when Guys want to "help" Me!! So trial fit parts before installation. Later Dave the Wave