I have quite a few new wheel bearing races inner and outer as well as ball assemblies courtesy of Warren Foster some years back before his passing. They are ND which I understand is New Departure which was the bearing division of GM. Looking through my parts book, I am having trouble finding numbers for a 52 1 1/2 ton. I see outer bearing outer race as 909625 with a stamping that should be ND909625. I don't see the inner race listed. Then the inner bearing outer race shows as 909626. If you can still read the part numbers off of your old bearings or if you can find the ND part numbers or factory part numbers for what you need, I will check the collection to see if I have any of it. Thanks, Greg H.