My 1977 Impala wagon has a RR wheel bearing noise so I tore it down and found that the axle is wasted. I'm having trouble finding the correct axle, bearing, and seal. It appears this is an odd ball set up with the 5x5 bolt pattern and odd axle dimensions. I do know that it has a CR 533803 seal in it but it leaks so who knows if that's correct. Does any one have an idea on where to find these parts? Any help is appreciated.