Thanks for the input, Rick. Both bikes are 2004's, so they use the quad seal with scraper rings. Looking at the dimensions of the newer seals, it doesn't appear that they would retrofit. I will be looking closely at the condition of the shafts, and put a nice cross-hatch on them.
I also have a DR650, and had you hard anodize the shock body. It's gotten a couple of oil changes, and still no leakage from the original seal. I rode that bike across the Colorado and Utah portions of the TAT and back, so it's seen it's share of abuse.
Enduro Racer & Big Bike Adventurer