Have you checked to see if there is side play at the yoke? Replacing the bearing requires the removal of the pumpkin. With my yoke NAPA just looked up the seal and then looked up the sleeve for that size.
In another application, at CarQuest, I bought a combined seal/sleeve product for the crankshaft so I guess they handle it differently. Another interesting twist is that CatQuest had an offset seal for the crankshaft that rode on a different part of the surface. Maybe that is another option for the yoke.
