This self-locking ballmount provides anti-rattle tension and is constructed of polished billet aluminum. It carries a heavy-duty gross trailer weight capacity of 10,000 lbs. and a tongue weight of 1,500 lbs. Featuring up to a 5" rise or 4" drop, it houses a chrome-plated platform with both 2" and 2-5/16" diameter hitch balls.
This cut-away view of the shank on a non-adjustable ballmount shows the locking mechanism in motion. As you turn the key, the locking pins will extend out through the pin holes to secure the ballmount in the trailer hitch.
DT-ALBM6400 Diversi-Tech Self-Locking Adjustable Billet Aluminum Hitch