Bus Stub Axles in Type I rear arms?

[ScottWisdom]

I have a 2-1600 with Type I rear arms & Type I stub axles & drum brakes. I'm planning to upgrade to a CNC hub/disk brake kit. CNC has a kit that uses Bus stub axles with a bearing conversion to adapt to the Type I bearing housing. The thicker Bus stub is much stronger, but will the thinner bearings be a problem?

[Fourstroker]

Scott,

Greg Crew runs this setup on his Sportsman Car and has for at least 4 years that I know of without a bearing failure. Shouldn't be a problem