Voltage drop (need major help and input!!)

[tonedeaf]

all bare metal.. my rear bank is connected to the front by 0 gauge and my rear bank is grounded by 4 gauge... would 2 runs of zero help alot back there or is one enough? its like a one foot run.

So your running 1/0 then just decided to ground the rear with 4?

That and why up the ground wires in 1/0 and not the power wire from alt to front battery?

[Platinumzs1k]

its grounded in 4 because i had all 4 gauge wires when i first started. and i didn't up the alt wire up front because my alternator is extremely difficult to reach. it might need to be up on a lift.

[tonedeaf]

its grounded in 4 because i had all 4 gauge wires when i first started. and i didn't up the alt wire up front because my alternator is extremely difficult to reach. it might need to be up on a lift.

Where at, down below the engine by the driver side axle, next to your A/C condenser? Mine was too...wasnt too bad to reach to get to. As I said though, this will make a difference. Do it and the rear battery ground asap. If you can, run a second 1/0 awg wire from front to rear for negative, as this is normally better, but not terribly necessary. Just get them done.

[Platinumzs1k]

im def gonna do it asap but the alternator is on the passenger side on the bottom.