I recently picked up a whole dash assembly from an 81 Gl wagon I am planning on putting it into my 80 wagon. Im now wondering how much different the electrical is going to be. My stock car is not a GL and just has the basic gauge set up. (no tac, oil, or volt meter. etc) The new dash set up has all the guauges. Am I going to have to do a bunch of rewireing to get the tac to work and the other gauges?

Yes - to the point that it's probably not worth even bothering with it.

 

You would be much better served by mounting some aftermarket gauges to get what you want. Add to that the fact that the stock gauges pretty much suck on the GL's anyway (they are ok to a point, but for a real *reading* you need a better gauge with better divisions and markings) it makes it a pretty worthless endevour to try and swap them. Tons of work for crappy gauges? Not happing in my shop.

 

GD