ProLink XXL Shackle Mount Assembly Factor 55The Factor 55 ProLink XXL is the largest and strongest ProLink winch shackle mount in production. The ProLink XXL provides winch owners with a means to replace the conventional winch hook with a safer and stronger screw pin shackle D ring. Originally designed for military 24,000 pound winch applications, the ProLink XXL is now available to the general public. Like all models in the ProLink family, the XXL is engineered and made in the USA from 6000