I run LT's on my Dakota. It's mostly a commuter, but I don't trust the pmetrics on a vehicle that heavy.
I have P-metrics on my '01 F150 Supercrew, the GF has them on her Expedition. I've not had a problem with mine, her only problems were on-road (with a different driver, who knows how she drives?). I'm pretty sure both those rigs weigh more than a Dakota, unless you carry a lot of extra stuff...
And I do a pretty fair amount of rough gravel road driving in Eastern Oregon during goose season.
