1970-76 Mopar A-Body 6-Gauge Black Dash Panel Kit (Classic Industries)

Good Evening All,
I have a question about the Classic Industries part (MA18011A) in the title. I have never noticed until now that the description states:
"Will fit 1970-76 A-Body models with original square speedometer (some early models came with a rectangular speedometer and this panel is too narrow and will not fit)."

I have a 1971 Dodge Demon that originally included the gauge panel attached. Is this considered the square speedometer or the rectangular speedometer? I am unfamiliar with any other speedometer than this for the Demons, and technically this is a a rectangle. So will the Classic Industries 6-Gauge unit fit my '71 Demon?

Thanks In Advance,
Jacoby S. Berry

speedometer gauge.jpg