1964-69 Input Shaft Seal, all. don't forget to check your clutch system when replacing your seal, it might have gotten oil in it from the leaky seal, it can cause the clutch to slip. for any technical questions, don't hesitate to give us a call at the shop at 918-753-2486, we will be glad to answer any questions you might have. See torque specs & installation tips in our "tech tips" page.