2500HD Duramax
 

..along with a prestige trailer with surge brakes. Tows straight as an arrow at 70-75 mph. Has the Diesel/Allison package and just leave her in overdrive. Stops great and the grade braking feature in the tranny is a plus. Replaced the stock receiver hitch with a Putnam XDR Class V hitch.

It really depends on how far your normal haul is, and what your hauling plans are. If you plan on making several long distance trips throughout the course of the year then bigger is always better and safer (2500,3500,F250,F350,F450), but if you have short haul then you don't necessarily have to go that big (F150,1500 w/extended cab, 8ft bed and biggest power package available. I will agree though a range rover seems a bit underpowered and unsafe to haul a 292, it might pull it now, but your going to absolutely kill your tranny/brakes/rear end if you continue to haul it with that. I wouldn't say you had to go 3/4 ton, I've been looking into F-150's, even though I dispise Ford's. I think it's rated for 9600 lbs. I only plan on towing a few times per year for any distance, 60-70 miles at most.

Every 5th post in the truck and trailer section is about this same topic.

If you are towing over the rated capacity of your truck and/or your hitch; it does not matter if you are going on a 5 mile trip or a 500 mile trip, you are putting EVERYTHING and EVERYONE at risk. In the event of an accident/incident; your insurance company is liable to deny your claim for towing with and improper setup, and then you are totally hosed. Or imagine if someone that was due to pay you money due to an accident that they caused, but they go through all of the proper motions to prove that your setup was improper and/or illegal, and they refuse to pay for your damages. Insurance companies are in business to pay the least amount of money. They will spend $10K to prove that they don't have to pay you $100K since your setup should not have been on the road in the first place.

I used a full Weight Distribution hitch setup for a couple seasons, but it is NOT a substitute for a correct and properly rated setup. There is no band-aid here. Air-Bags, WD hitches, bigger brakes, E/H trailer brakes, and other towing enhancement tools can make your towing better, but you have to start with the correct rated and legal setup first.

When I had my 292 I towed with an 04 F250 4x4 with a 6.0 powerstroke and a 4" lift on 35's.

I tow my 1991 292 with a F150 crew cab with a supercharger.Plenty of torque to get her moving with two axle trailer.Full brakes help it stop.