Anyone who wants their diesel tow rig to last, is gonna have a set of gauges in their rig. So here's mine!
Autometer's GS Series gauges - pyro, trans temp & boost. The gauges & 3-pod pillar came from Strictly Diesel.
the boost gauge is tied in right at the Map sensor. The trans temp right in the pressure port on the d.side of the trans, and the pyro in a bung post-turbo in my down-pipe. the knob is for the backlights- the GS series is LED which is alot brighter than the stock dash, so this allows me to dim them down to match the dash. Its just a cheap potentiometer from RadioShack, maybe $5.
Update 4/2013: Finally got off my ass and moved the pyro to the d.side manifold where it belongs. Temp readings are much more accurate now.