Best advice on buying 19.5 rims and tires

I bought Rickson 19.5's used on craigslist and mounted Nitto M608Z in 245/70R-19.5 tires from Les Schwab. I have a 2006 Dodge Ram 4x4 crew cab, short bed and needed a 2" lift in the front for these tires to clear and not rub on lock-to-lock turns. They are about 34" tall.

I put 90 psi rear and 70psi front. They ride rough unloaded but nice loaded. No room for a spare that size under the truck with a sway bar installed. I don't bother with a spare, figuring if one of these massive tires fails, I'll have a lot of other problems to deal with.