Different rear bearings

[ped58]

Took off the rear wheels and drums to inspect the bearings and it looks like

I have two different ones, one looks more robust and the other looks like the stock Ford. Is one better than the other?

 

[Mikeinnj]

Your photo of the bearing on the right shows an original style bearing.
Your photo on the left shows what may be a replacement ubdersize repair bearing and race which are used when the original hub race is pitted or scored. Both parts are available at Bratton's as shown, or other vendors. Regards, Mike

 

[ped58]

Thanks Mike for the information, I'm still learning.