The Hitchsafe Extender Pins/Bolts are for 2005-current Toyota Tacoma and the 2007-current Tundra OEM hitch receivers. The 2005-current Toyota Tacomas and 2007-current Tundras have an additional bracket that cross over the hitch receiver holes and secure into the step bumper holes above. This bracket is an additional 4mm thick and requires the longer HitchSafe pin which are now available.
The HitchSafe works with all other vehicle makes and models including all years of the Toyota Tundra prior to 2007 and all the Toyota Tacoma models prior to 2005. Simply purchase these longer pins if you have a 2005-current Toyota Tacoma or a 2007-current Tundra.