4/2 12:28p

Last july I rebuilt my front axle, new seals and hub assembly. The hubs started to make a growling noise. After removing and inspecting there is a burn scar in the interior of the hub. Loos like bearing over heated. blue purple color. When I went to replace them at ford dealer the dealer parts have a similar burn area though smaller. My question is do they come from the factory with this burn scar? doesn`t seems right. I replaced the needle bearing on my original hubs (1999) and reinstalled.
The original hubs have no such burn marks. whats up? front hub