The packet duly arrived and here are the contents
Each kit has two teflon guides and four O rings as below
Here is a list of the sizes if anyone wants to make their own but probably worth waiting to see if they actually fit.
Here are the four O rings and their sizes
And here are the two teflon guides with an angled shot of each to show the overall shape a bit more clearly.
The first is a rectangular cross section like a washer.
The second is shaped with an "L cross section.
The information may be useful in the future - Later I will put up a posting about how it all goes.
Bill
1979 Euro 6.9 with AMG modifications #5554
1979 450SEL plus another 1979 for spares