One of the places (aftermarket on Ebay) is/was making them out of metal as opposed to plastic which is what I got. Until it came in I actually took it apart and used a piece of string to move the lever for about a month.I've replaced mine two times. The second time was onlyn 3 months later. It is a poor design.
When you take the back gate apart, dis-assemble everything, clean real well and lubricate everything. Hopefully, by doing this, the second time will last 7 years like the first one.