JA: Do a search on "Westach" and you find many threads, including a couple of mine. This combo gage does not match the Dodge gages as well, but the simplicity of design, quality, and performance more than compensate. For starters, the pyro does not require 12V to operate. It is a simple millivolt meter that will not be prone to bad readings or outright failure. The light is a simple bulb which will not likely fail, as has been the case with other brands. The light will work with the existing headlight dimmer, which may or may not be the case with LED units. The Westach combo gage on the SRT-10 A-pillar, all available from Geno's, is IMO the is the best overall choice. I went with the white face and like it just fine. The pointer is also white so the contrast isn't ideal, but the orange tip of the pointer is easy enough to see. Lamp glare on the white face seems to be an issue for some, but I have found the green filter and headlight dimmer handle this well. If you have any doubt go with the black face. PS: When I install transmission temp I'll probably install a Westach temp combo gage in the recess above center console, and hookup coolant temp as well. These don't need to be at eye level all the time.