Well, here is the end result. All 8 glow plugs were replaced with 9 Beru ZD-9 glow plugs.
I brought the old ones in and ohm'ed them out. All but 2 ohmed in the bad range, and those were marginal.
So, out with the bad, in with the good, now just have to get a new glow plug relay and we can test them out.....
Since everyone likes pictures.
Here is a shot of all 8
You must be registered for see images attach
A close up of just one, to show condition. They were all in about the same condition......
You must be registered for see images attach