PREMIUM VERSION Replacement mainshaft seal on both irs and swing axle VW transmissions. Insures against gear oil leaking into the bellhousing and wrecking your clutch Beetle Type 1: 46-79 Bus Type 2: 50-79 Ghia: 56-74Mainshaft Seal for Beetle 46-79 Ghia 56-74 Bus 50-79 PREM