I popped the stem out of my triples tonight and knocked out a quick drawing. It isn't fully dimensioned but it's enough for someone wanting to make a new stem, attempt to fit it in other triples, or do any other Frankenstein fabrication. Hopefully everything will be legible since it's a picture of my computer monitor and then compressed so it can be uploaded to the forum. Obviously if you see something you know I screwed up let me know so I can fix it right away.
Clicking the picture makes it larger and easier to read.
Just tried attaching the PDF file but it's too large for the forum so you're stuck with the picture. The PDF file is sized to print on a standard 8.5x11 sheet of paper.