Crazy Gas Gauge

I just ordered a couple of the ebay sending units to give them a try. They look to be made exactly like the original so we will see.
64-70 Dodge A100 Truck/Van, 67-70 A108 Dodge Van Fuel Gas Sending Unit 5/16" | eBay

I do have a meter match for this car and have one installed in another car. I just dont want to pull the dash out because its fragile.

66fyssh, they dont need to design a new sending unit...just make an accurate copy of the original. The Chinese are good at copying stuff. Not sure why we cant get a decent sending unit for our mopars.
I wonder if the ford and chevy guys have the same issues?