In service under 20 hours. Bought only months before I purchased an AlterKtion setup with rack and pinion steering. 16:1 ratio is huge improvement over stock, and steel housing makes for a strong box. Summit wants $489.95, I want just $420. Picture is from Summit Racing. I am in Santa Clara, CA, and the steering box is in Sacramento. If there is interest I will go up and take pictures of my steering box. My email address is bjasonsmith at juno dot com.