I put a brand new set of OEM Ford hubs on the AI car before my last track day. I'm running adequate cooling ducts.

After 3 30 minute sessions, the green OEM grease was puking out the back of the hub and splatering all over the cooling ducts and wheel. This was on both sides of the car.

The last set of new Ford hubs I put on did not exhibit this behavior until they were almost used up. I'm confused as to why brand new hubs are doing this.

Could they have been overpacked? Should I just clean up the mess and keep going? There is no play in the hub/bearings currently.


FWIW, I'm running Cobra brakes with Carbotech XP-16's. Cooling ducts are headlight bucket 4x6 cutouts and 3" tubing running to a set of cooling plates pictured below.