New gas cap similar to the original design. Some model years available with or without the (EES) evaporative emission system. Available in locking or non-locking versions. A pressurized cap. Will fit trucks with Evaporative Emission Control. For original tanks only. Will not work on 71-72 Repo tanks.
(**Note: Fits 71-72 Stepsides & Fleetsides and 73-78 Stepsides.**)