John C Garage developed these 3/4" Drop Shackles specifically for the customers with 2020 GM 2500/3500HD trucks who wished to level their truck without having to raise the front 1.2", or lower the torsion bars .2-.5".
If turning the front torsion bars down .2-.5" is something you want to do to achieve the look you desire on your truck, check out the 1.4" Kit.
THESE WILL WORK ON 2011-2019 GM 2500/3500HD
These are made much stronger than the factory shackles and have a thicker metal material used for heavy duty use and longevity. The bushings are rubber encased and pressed in. Meaning it's a one piece, that has a rubber outside and a metal tube inside for the bolt. **Same type of rubber durometer you would find on factory.** This feature is key when maintaining a smooth ride and durability. The materials used, and bushings in these are far superior than what comes in most aftermarket shackles. That is why this shackle is considered a "premium shackle" and separates itself from the rest.