MQ (2016)Triton towing Jayco Starcraft outback

William
Apart from the normal wiring and trailer plug which the controller will show a circuit diagram of, the hardest part will be to identify the +ve output wire which operates the stop lights. Most brake switches have two sections integrated into one switch with 4 wires, usually. One section is for the ECU to detect things and the other is the stop light section. Make sure you don't connect to the ECU related wires. Best to find out which is which! Tracing wires from the lights to the switch will reveal the brake wire/colour. Someone may know and tell you here. I don't know.
While simply running along a made road is might be ok, many do, if using the OFFroad capability of the van, the shocks on the vehicle probably will not keep up with inertia loads and emergency braking forces etc. New Tritons empty, wag their tail up and down indicating less than desirable shocker control at the best of times. Add a van, load, and rough roads, or even in emergency situations on made roads it may struggle and not be a positive experience for you. Be aware of that.
Only by pushing it in capability will all be revealed, just like it is when the the pear shaped situations arise.
PS. most vehicles require replacing the shock absorbers with items which have more capability than the, standard shocks fitted for smooth road comfort. They are not made or matched for vans as part of the OE suspension setup. Just because it can simply tow the van along a road means very little. After all, you are talking about MORE than the vehicle weight dragging along behind. Most people look at the situation of towing a van as normal, but towing more than a loaded Triton behind you as not normal.

I just use one of THESE as I do not want to do a permanent installation.

Works well - just make sure that the plug you take the power from has an appropriate sized fuse as some are for low power - my car was fine.

consult an auto electrician as to the brake controller wiring . i had the mn triton ie the model before the one you are considering and i am sure you had to pick up the brake light trigger at the brake light not the brake pedal for some reason . as for towing when i had mine i had a van with an atm of 2t and the triton struggled so hopefully the new one is better .

It was a 2013 MN , when I say it struggled I guess what I mean is 2t was about its limit , we upgraded our van and with an ATM of 2750 the Triton just couldn't handle it . that's if you could even get it off the mark with the rubbish clutch in them . But op is talking about the next model a MQ so it may be a totally different kettle of fish .

Regarding the brake controller, I have a Pajero of slightly older vintage, and there is a wiring setup built into the harness, where you have to install a relay box at the rear end of the car, and a small mod under the bonnet. I imagine that the Triton would have similar features. An auto Electrician should be able to tell you. Apparently if you tap into the brake lights etc a la old school, it can upset the Canbus system in my Pajero and probably your Triton. Check with an auto electrician first.

Regarding the towing ability of the Triton, it should have plenty of power, but as already said, the chassis overhang is rather long. Tritons can bend the chassis immediately behind the cabin, but Tritons are not the only utes which do this - virtually any of them will bend their chassis. It all happens when you are flogging along an outback track and come to a 'whoopsie' - a hump or more likely a washout. As the ute goes over a hump, it has passed the obstacle, but the caravan is still coming to it. The ute goes down from the hump as the van starts to go up the hump. Result - excessive downloading on the towball, and the chassis rails behind the cabin are the weakest point. The chassis bends. Driven sensibly, the Triton will comfortably tow loads such as this, so on outback roads, simply don't flog along at high speeds.

As said above, the chassis bending is not limited to Tritons - most of the utes suffer the same problem.

One point to note with any leaf sprung vehicle is NOT to use air bags as a supplement for the rear springs. You may get away with it, nut equally you may not. With leaf springs, the load from the springs is transferred to the chassis at 2 places - where the springs connect to the chassis. If you put an air bag in the middle, depending on how much force it transmits, it is a point load, not a more distributed load as with the leaf springs.

This still doesn't stop the chassis from bending if you go over a hump at high speed - the car will be going down as the van is coming up, resulting in very high download forces on the towbar. This applies to any ute, not just tritons. Others may be stronger, but the bending moments are still present if you hit a hump or a dip at speed.

Thanks everyone for your advise and suggestions. I will use the Triton for our Mungo NP trip and see how it goes.
William