Brand new Pioneer Weston gearbox seals for all MGB MGBGT non overdrive models 1963-1967. Early MGB gearbox. Do the job once with quality parts. We not only sell parts but use these items in our own vehicle. Factory reference numbers 1H3275 & 22H475. Pioneer Weston has supplied quality oil seals for British cars and European sports cars for years. They are well know for their quality. This auction is for two quality gearbox seals non overdrive gearbox fitted originally 1963-1967 models.