I have a 2500 lb trailer. Tongue load is 360 pounds. I pulled it on 2nd gen Takomas with no problem. But on my new 2016 I got a massive amount of dolphins/bouncing up and down. As soon as he drove off, his back bounced up and down a bit. It became very uncomfortable to drive and kind of uncontrollable. It was clear that the factory off-road shocks, which are very soft, weren't designed for towing, even though the truck has a towing package and is rated for 6,400 pounds. Since I've been towing trailers for many years, I'm very familiar with loading and drawbar loading. The drawbar load should always be between 10 and 15% of the trailer load. The trailer is properly balanced. Anyway, after reading the Tacoma forums and realizing that many others are having the same issues when towing a trailer with a new Tacoma, I decided to give them a try from behind. Many people on the forums said that these shock absorbers solved the problem. Easy installation. Bottom bolt torque is 75 ft-lbs. top screw 15 ft lbs. The unloaded truck drives great. Maybe a little harder than before. But still have a good trip. Even on the dirt road, the ride quality is the same as the factory shocks. But when I came out with the trailer, the difference was amazing! Where the back of the truck started bouncing and kept bouncing, it's now as smooth as can be. This shock is a 2" shock. Factory off-road shocks are 1.5" in diameter. Factory shocks get hot to the touch after towing, so it's understandable that they just can't dampen rebound. These new shocks have one 2" in diameter. They fit with no problems. Just apply some soap to the ends of the rails to help install them in the brackets below. Never mind. Luckily. I was beginning to wonder if I could get Toyota into the solution of the problem. But $150 for a solution is reasonable. I end up putting it on the front. This is more difficult as the dampers are in the coil springs. At the moment having them in the back works great.
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