Factory bearings or vault bearings?

[Big J Mac]

Tandem axle trailer what should the cost be to have a dealer do them ?

[Blair B]

The bearings and seals are the same, the only difference between the Vault and factory is the protective cap. They both use Chinese junk bearings and seals. If you are replacing the bearing and seals, make sure to use a high quality brand of bearings and seals, like Timken, SKF, NSK, National Seal.