Introduction to truck mounting Princeton has almost 30 years of truck mounted forklift experience. The basics are simple, but there are many details to cover to insure maximum productivity and safety. In general, almost any truck or trailer can be modified to carry a Piggy Back®. Princeton features the EZ Hitch® mounting system, which is a proven and tested design. This is also the only mounting system in the industry that features 3 point safety: hook, pin & slack safety chain. The unit is ready to use in less than 60 seconds.