Yes, I use a similar piece of exhaust pipe, I think it doesn't have to be very long, probably 6". Use one of the metal washers that's under the seal (I have spares), and tap on it with a piece of 2" PVC or ABS pipe (which I use as a seal driver too). I've heard 2" OD central vac tubing might work, but haven't tried it. And then there is the expensive OEM Yammy tool which will do it all.

I'm looking for something to work on the ES as their seals are much smaller (43mm tubes vs. our 48's). I might spring for the Motion Pro drivers however.

Just to confirm, 2" OD central vac tubing will not work..... ID is too small. Tried it today. Use exhaust pipe 2" OD, ID is then correct.

I think the middle bushing is no further in than 4", so a tube something longer than that will work. A buddy has the OEM Yammie fork seal driver, and I doubt the tube is 4". Mine is 8" and I slide it on, then use one of the big washers, then a piece of 2" ABS (or PVC) to tap it down. I use the ABS and the washer to drive in the upper bushing and seal (assuming you have a spare washer).

Using the long tube that I did, though, allowed be to just hit the end of it with tha mallet since it stuck up over the end of the stanchion. No joint. Though driving the seals was a bit more difficult for me over all. I can't remember what I used as the driver for them other than the old seal.