front wheel bearings

[SprinterLV]

Can the front wheel bearings be repacked and what grease did GMC use so I don't contaminate what is in there already? The bearing feels fine but shows signs of past heating. I won't replace it unless I have to but it looks like it needs more lube to continue.
thanks,

 

[4C FED]

You'll have to replace it if you want new grease in it.
As far as I know, they are not serviceable.
I think they run about $140 per side.