This is an issue with Cummins as well. I have a Cummins 400 ISL/Allison in my 2006 Allure and it had a dry PTO.
One note of caution on the wet kit. I bought a 2006 Allure with approx 35,00 miles. The wet kit had not been done on it. I did an inspection first to see what the condition of the spline on the pump was, and found out that it was severely worn and wouldn't last long, even with the wet kit installed. The wear would have just continued and eventually failed (probably at the most inopportune moment as well...).
Here is a picture of what the splines looked like:
You can see the extreme wear. Once the hard face surfacing is worn away from the splines on the gear, the wear will continue, even if lubricated. If your pump splines look at all like this, I wouldn't just put it back in.
I ended up ordering both the wet kit and a new hydraulic pump from JDRV at a cost of about $2400. What started out to be a relatively easy fix turned into a pretty expensive repair. I did the labor myself. It is doable, but quite messy and quite a bit of work.