i am switching out the drums for disk brake hubs on the front. have the spindles on and hubs. but i dont currently have calipers. do i need to keep on the caliper guard or can i run it without. i am not sure if the guard helps seal the bearings in the hub or if i could run into any probs. i have the guard off on one side and i can see where the hub slides up to where the guard used to be.