Don ,
You will need Inner Hub Axle Seals .
GM # 5.622 - GM # 3686563 superseded to : GM # 3743202
I believe the interchange part # is # 2081 for Timkin or National or Moog brands .
I'm only into GM NOS parts so I went with GM original parts .
Axle Seal
PICS
https://s26.postimg.cc/ge0p5x15l/Hub_Seals_Rear_Axle_NOS_2.jpg&
https://s26.postimg.cc/4ep6yo0qh/Inner_Axle_Bearing_Seals_GM_NOS.jpg&
https://s26.postimg.cc/66i5tkrt5/GM_3743202_Inner_Hub_Seal.jpgCollectors Auto
Blaine , WA.
phone : 800 - 414 - 4462
Collectors has (
2 ) GM # 3743202 in stock .
Since your Pinion Bearing took a dump the other axle bearings may not be far behind .
You do not want an inner or outer axle bearing or a side differential bearing to fail as that failure
may cause some
REAL damage .
The Side differential & Inner axle bearings are the same part # .
GM # 5.536 - GM # 188930 superseded to: GM # 9412415
GM # 188930 is stamped : D11786
PICS
https://s26.postimg.cc/qdvllw4q1/Axle_Bearing_from_BRUCE.jpg&
https://s26.postimg.cc/b55o84ird/Axle_Bearing_Inner_B.jpgFriesen Chevrolet
Sutton , Nebraska
phone : 402 - 773 - 5538
Friesen Chevrolet has (
1 ) GM # 188930
Friesen Chevrolet also has (
1 ) GM # 9412415
Collectors Auto
Blaine , WA.
phone : 800 - 414 - 4462
Collectors Auto has (
3 ) GM # 188930 & (
3 ) GM # 9412415
You can also search ebay using the part # as the search criteria .
The Outer Axle Bearing is GM # 5.585 - GM # 188932 superseded to : GM # 9439835
PICS
https://s26.postimg.cc/s5okgt3ih/A_1_aaa_Outer_Axle_Bearing_NDH_NOS.jpg&
https://s26.postimg.cc/90lb724a1/A_2_Axle_Bearing_Outer.jpgGM # 188932 is stamped : B11630
Friesen Chevrolet has : (
3 ) GM # 188932 & (
7 ) GM # 9439835 in stock .
Colonial Motors
North Branch , NJ
phone : 908 - 722 - 2700
Colonial has : (
3 ) GM # 9439835 in stock .
George
'54 3600
