Mine would be the 1000 mm in a metric set given that it was a 300SD.

I'm going to try the Daycos. Remember that this will only run a mile at a time so my requirements are sort of odd. If they don't work I'll order up a set of Conti's.

Another issue I found was that the WP pulleys were too far back - that is, toward the engine. I spaced them forward 0.120" and now they look pretty good. I couldn't tell for sure but it looks the the pump was replaced in the not too distant past. Of course, I have no clue who the vendor or rebuilder of the pump might be. The drive flange doesn't SEEM to be pushed on too far but who knows. Anyone had this issue?

Dan