With the right setup-you're not going to haul your trailer with a more capable SUV...I'm about to install my second set of Superduty springs on my X-I rolled past the 300K mark a while ago and it's time...anyhow, I run F350 'B' code springs on the rear and 'V' codes up front. I have an aftermarket Curt hitch installed as well since my hitch rusted out long ago. Front and rear stabilizer bars keep things taught. I highly recommend inspecting all of your suspension components as well as your hitch-both of which, if are original, may be in line for upgrade. Not trying to worry you-but I will tell you that with proper maintenance you will not find an SUV that will haul your trailer the way that the X will...as far as the V10 goes and the gearing, I can't tell you much-but an old V10 Excursion is definitely a hefty and economical(to purchase) 1 ton that will tow a heavy travel trailer nicely.