I have been all over eastern NC looking for parts cars with little luck. For some reason there are no GP's to be found and very few other G bodies. I was headed to a local mom and pop yard this morning in 24 degree weather and for some reason they were not open on time. I drove past and before I could find a good place to turn around I found an even smaller yard. Three GP's, two Cutlasses and a Regal. All but one are V8 cars. Both GP's have the gauge pack. I was blown away. I ended up with a complete GP cluster with gauges and tach, two V8 harnesses and door straps for $25.00. Going back one day this week for aluminum brake drums for $25.00 it was just too cold. Do I need to change under dash harnesses to add the Tach and four gauge cluster? Or just change the senders?