does anyone have a hub assembly laying around they could look at for me. i want to know the part number of just the bearings, not the whole assembly. my truck is a 2wd 2002 silverade but i think all 2wd 99-06 GM 1/2 ton trucks use the same hub. thanks

 

I pulled a new 15946732 hub and got bearing number JRM58000 SF but it is also labeled "do not disassemble". I will also warn that the design has been changed over the years to accommodate multiple applications(ie 2wd & 4wd) so the bearing could have also changed.

 

You can't get just the bearing.

 

The hubs seem to be a non serviceable part. I pulled the dust cover and it looks like the bearing is installed between the spindle flange and center shaft and forged together. You would have to cut the rolled flange apart to seperate the assembly. From what I see the bearing fails due to the small amount of factory grease burning up. It would be nice to find a way to grease the hubs manually

Searching for the Timken bearing PN came up with nothing