The first thing I did was install the felt ring first in the retainer, then I was able to install the oil seal in the retainer on top of the felt ring fairly easy. I used a wood board laying flat against the seal to tap it in. I made sure the open end of the rubber was facing the bearing.

I honestly think you guys are correct in saying it may be the wrong I.D. diameter. O.D. diameter seems perfect.

Currently, I'm in Pierre, SD. When I get home on Wednesday, I'll give ya the part number thats in the box and try to give ya the best I.D. measurement I can give. The best I can do is with a tape measure...sorry.

Thanks alot,
~Ron