[too tall]

Take a flapper wheel and grind the welds down smooth. If there are any low spots weld more and flapper it again until they are flat and smooth. THen take the outer ring and bevel the outside edge of the ring on the inside lip so that it doesn't cut into your tire when it's folded over . We have done multiple sets of weld ons and had no leakers with this technique . If you have to use silicone then you have done something wrong.