1999 Mercury Marquis axel wear

I recently noticied my rear axel leaking oil on to my concrete at my house .And i put my car on the hoist and removed the axel and noticied that the bearing worn a groove about 16th of an inch onto my axel shaft on the drivers side from lack of oil.I wanna know is there a offset/or a repair bearing that I can replace my axel bearing with so I can use my same axel so hat it will not put wear onto the same location as my factory bearing did.Thank you