I'm not sure, but In a brochure I have it says 12".
I would get a picture from seller of tire size, it's right on the outside of tire itself. If wheel has 4 bolts, should be a 4 on 4 bolt pattern. If 5 bolts, then 5 on 4 1/2 bolt pattern.
Definitely take grease gun, all the campers and toyhaulers have ez lube axles, I don't know if the older pop-ups do. If it does, jack up tire using the trailer frame, and pump grease into end of axle while spinning tire.
If not, then you or someone else would have to take apart the hub to grease it properly.
Good luck.
I would get a picture from seller of tire size, it's right on the outside of tire itself. If wheel has 4 bolts, should be a 4 on 4 bolt pattern. If 5 bolts, then 5 on 4 1/2 bolt pattern.
Definitely take grease gun, all the campers and toyhaulers have ez lube axles, I don't know if the older pop-ups do. If it does, jack up tire using the trailer frame, and pump grease into end of axle while spinning tire.
If not, then you or someone else would have to take apart the hub to grease it properly.
Good luck.