Auto hubs are great for beach work and lighter off road, and I was a convert after I had them in this one for the first time, however, mine failed me the minute I started getting into the heavier workloads and unfortunately that was in the middle of the day in the middle of Beerburrum state forest!! They were clicking so bad, I didn't even try to manually lock them in and had to get out of the forest (about 4klms of reasonably rutted tracks where we were) in 2WD!!!