4 whl parts is still a dana distributor and they beat all our other vendors "jobber pricing" to repair shops.
They may have to "special" order many things, but they usually arrive in 5-7 business days.
They also sent me a Perfect Circle catalog, which lists many of the ball joints, track bar, pitman arm, tie-rods, drag-link etc. , that are often "dealer only" at many parts houses.
Who wants the made in China stuff, when this is so reasonable! Unfortunately, I don't have a Dana catalog handy or I'd get you the part number.
Get the numbers of the axle housing cover before calling them though.
Any Napa should be able to help you with a "ready" sleeve, if the groove is your problem. Dana thru 4 whl Parts wholesalers should have a listing too.
Good luck
Andy