big front hub

don'tunderstand what you are talkingabout. it may be a whole assy. But you may also have bearings that can be replaced. it should be just a hub that unbolts from behind.

There is a hub assy that's replaceable on the front axle. the ones listed at all the parts houses have a 4 bolt pattern to replace them. the one I have has eight bolts holding it on. the lug pattern is eight studs also, the norm is 6 to 6.75 width but I have 8.875 spacing between lubs. the wheel part number that fits is ford F81A-1015-DA. hope this helps.

because this is a truck we don't have info for this model. where ever you got it is obviously theworng one. Also because of the size of this truck go back and make sure you have production date of truck as this can make a big difference. I think what the are selling you is one for a f350 and not a 450. It might depend also on whataxle you have on the front for weight, that will help as well. it should be on your tag on door or underhood.