Winter is Coming
Time to think about winterizing your Bolt.
A good Tech Tip WINTERIZING YOUR TRUCK including a link back to the Forums for additional tips.
Those are more of a dust shield than a seal. I don't know if anyone has come up with an improved "seal" or not. If your ball bearings are good ( no discoloration, Spaulding or pits on them, they could be washed up, repacked and reused...