OTC Tools For International trucks. With the introduction of the new ProStar Model Series vehicles, new undecking adapters have been developed to assure safe and non-destructive undecking of the vehicles when the driveway companies deliver them to the dealership. These two adapters have been tested and approved to 6,000 lbs. per adapter and should be used with ZTSE4841, Prostar undecking slings that were shipped essential. Please reference SFN-07-10for additional information. Email for product availability.