raschemmel:
ABSOLUTELY NOT !You cannot have such low resistances across your power bus.
Read my last post.
Look at the values of the voltage divider.
You must use 10k and 4.7k
ALL of your voltage dividers must use these values.
List ALL of the components that YOU added to YOUR schematic by component designator .
(I am trying to find out if ANY of the resistors in your schematic are part of original circuit.
why do you have R2 & R3 at the Guage with the output of that voltage divider going to the sender ?
Did you add that ?
Why ?
R2 and R3 are actually inside of the gauge. As user JohnLincoln said, the gauge is an ammeter. All the other resistor values (r4-r7) are example, I know they're not correct. It was just to demonstrate if the principle is right. I will change R4-R7 values as you said in your last post. 
I have quite a few 100k+ resistors laying around, so I can think of some combination. Thank you for your input, guys! I will let you know how the project progresses!