For more than 60 years, WARN has been offering manual hub conversions - it's how they started. Warn hubs provide increased durability and fuel economy, and are easy to install. What else would you expect from the company that invented the locking hub?
The WARN Premium Hub is a no-compromise hub designed for the hardcore off-roader or truck owner who will accept nothing less than the industry standard in performance. The all metal construction and ZA Alloy dial ensure years of reliable functioning. This dial requires a full 9/10ths of a turn to ensure positive engagement of the inner drive gear to the clutch ring. To make sure they stay engaged, WARN premium hubs use a thick internal wave spring and heavy dial detents. We know our premium hubs will be used hard, so we build them to last. We're so confident, that all WARN hubs are covered by a lifetime limited warranty.
Super Duty '99-04 (Will Not Fit Dual Wheel Applications)