In terms of the weaknesses of the the Grenadier for my use cases, since I frequently tow a 6500lb trailer in mountainous areas) the inability to do meaningful engine braking (like you could with a diesel) is probably the second most frustrating weakness of the vehicle (the most frustrating is the anemic fuel range, I am forced to plan on no more than 100 miles between fill-ups when towing, but the upcoming Long Ranger tank should solve this issue).
I did a trip ten days ago where on the way home I had a 7% grade for a very long time (about 4 miles iirc). My approach in those situations is to use the engine braking to keep the rpms right on the border before the rpm gage turns yellow, when it does I brake for a few seconds to get it about 1000 rpm lower, let off the brakes to let them cool as the vehicle speeds back to yellow, then rinse and repeat until I'm at the bottom of the hill. So far this seems to work fine, but its pretty stressful and if I am on single track, the vehicles behind me are probably getting frustrated.
As a result, I frequently debate whether I should sell the Grenadier and get a big diesel truck (like an F250 or Ram 2500) which would probably be worlds better for towing, but would not have anywhere near the trail ability once I get to my destination. I'm sure I would regret that when I wasn't towing so keep avoiding making that call, but....
Long intro to my question: I wonder if one of these brake kits would be useful to help remove some of that overheating risk and mental stress of mountain down-hills while towing?
