Tried replacing seals a bit back and they are leaking, so going back after it. But question is are these 45mm or 46mm tubes? Most of the seal drivers I've seen advertised go up to 45mm and some 47mm. The driver I used last time was a piece of 2" PVC split in half, appeared to me that I needed to bevel the PVC so that it didn't contact the inner edge of the seal, only the outer. Thought I had been successful, but evidently not.