Re: Tires for an '06 Explorer E.B.
It's not just the suspension to worry about, it's the wheel well liners. At full steering lock, too tall and wide of a tire can rub against the liners. It won't kill anything, but it'll make a good amount of noise and can increase tire wear if continued. I'm not sure of your rim size, but the larger the rim, the less the options you have. If you have the 18's you could get away with a P245/65R18 size. I wouldn't go wider than a 255 without it rubbing. 255's can also be quite expensive. If you have the 17's you could go with a 70 series sidewall and increase ride height by approx 1".
To see sizes check out www.tires.com
and search for your vehicle & year. It'll be more specific to what can fit in stock form. I would not exceed more than 1" in height over stock unless you plan to get a lift, or stiffen up the suspension as the tires will more than likely rub the liners when fully articulated. Hope this helps out
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!