Review on 🔧 Standard Motor Products TCA19 4WD Switch by Howie Broyles

Good product as a spare if you have an old style thermal drive. Ease of installation. No time to wait to get in the 4WD. Noticing the truck was getting sluggish, fuel economy dropped about 1.5mpg. The steering became noticeably heavier. Noticeable difference in noise at highway speeds along with little vibration. That's good for a truck that doesn't spend much time on the road, or as an off-road backup drive. It would make more sense to upgrade to a newer electronic actuator than this one.