Hi Paul,
After owning Toyota's for 26 years, the last three Toyotas were 200 series diesels.......I decided to go to the 'dark side' and purchase 2016 GMC Sierra (from Performax).
My ATV just getting heavier, having a bride that wants to carry more & more, I knew even without weighing the combination, I was overweight.
The Toyota is/was a fantastic tug and reasonable on fuel consumption as you'd be aware, the only negatives are quick/emergency stops with a fully loaded van wondering if your going to stop. I did not go with a GVM upgrade, but being a mechanic and service my own vehicles I did carry out a brake 'upgrade' slotted, dimpled rotors & performance/heavy duty pads......this did improve braking......at one stage I was considering fitting Tundra calipers front and rear but the cost was prohibitive.
The time had come to upgrade.....
After driving the F truck, RAM & Chev/GMC I decided on the GMC.
I believe I have made the correct choice, fuel consumption (towing) is less than the Toyota (towing).The GMC is my daily drive, yes you have to be aware of its physical size but it doesn't take long to get the feel for its size and it constantly amazes my passengers where I can park/put it.
I do miss some of the Toyota creature comforts......keyless entry, rain sensing wipers,Toyotas superior A/cond (Chev/GMG don't have air outlets for the rear passengers)
When towing, that is when the American trucks 'shine' seemingly endless torque & KW's to spare, when in 'tow haul' mode the effect of the exhaust brakes is nothing short of mindblowing .....you have total control of the rig.
Parts & accessories are readily available from an seemingly endless number of suppliers in the US, (freight can be costly though) delivery of ordered parts depending on freight option is about a week.
Fast moving parts for vehicles are (my experience) are easily sourced here in Oz.
Am I happy that I went to the dark side......YES!
Travel safe
PM me if you'd like to have a yarn