I removed the drive flanges and hub / rotors to repack and replace the berings on my Dana 44. When I went to reassemble, the snap ring that fits on the end of the stub axle after the drive flange, wouldn't fit on one side. The axle didn't protrude enough to get the groove past the flange. I tried prying at the axle U-joint, but couldn't get it far enough out. The other one fit fine. I left the one side off. Is there a problem with leaving the snap ring off? Any idea why it won't fit? All I could figure was the new inner bering must be thicker than the old bering. Thanks, Eric M.