Would Love to Know

Does the Redline Gauge Works dash panel
http://www.redlinegaugeworks.com/products.asp
fit in my car. I have a 1970 Dart that had the speedo that stretched across from left to right. I have seen people have used this product but I'm not sure if their applications are for the same as mine.
I pulled my original cluster out because its just plain ugly and didn't work properly (fuel gauge, temp gauge) I want to install a nice set of autometer gauges but I need to work this first part out first.