Have an X18D towing with a 2013 Taco V6. Essentially the same frame and power train, although mine is a real wheel drive only. Even with the four leaf rear springs, the trailer caused a lot of rear end sag, and corresponding front end lifting which takes a lot away from the steering. Put on a 8k Fastway (same as Equal-i-zer) and noticed a world of difference. Leveled the ride, stopped the rear end from bouncing, and tamed the sway from cross winds and semi's. Life's better with the hitch.