Leaking fuel from the REAR

[Lees97.3]

seems to be leaking at a pretty good pace. ive only driven it about 15-20 the past 3 days and lost a quarter tank (running off the rear tank now, leaks while running off the front too). rear differential is covered with fuel and drips from the plate below the tank???
I took it to and they said "my pump was leaking" but it would be safe to drive to North Dakota and back to MO. It does leak from the engine as well.

[MT_Truck]

Where at in ND?

[Lees97.3]

I moved up to Minot on Wed...oil

[backwoodsboy]

Fuel pump is in the engine valley, so this could be the cause of the leak under the hood, but not under the bed.
My guess would be either your fuel lines or the tank's themselves are rusted through.
If the pump is in good shape you will be fine driving the truck. It will be an expensive trip at $4+ a gallon, but you won't damage the truck.
If the pump is weak you can/will do damage to the injectors.

[Lees97.3]

I guess there is a fuel pump or transfer pump for the rear tank? could that be my leak b/c my front tank is dry? I guess i should only fill and run off my front tank and see if it stops....
The truck runs good almost seems to be happier running 75mph on the hwy lol and does not seem to be starving for fuel running off either tank.

[backwoodsboy]

Unless you have something aftermarket installed, there is no transfer pump anywhere in the fuel system. Cam driven pump acts as both the supply and "high pressure" pump.

[erics diesel]

it maybe from the tank selector valve

[terryknight]

drop the spare and he skid plate and see where it is leaking. the rubber lines on the fuel pump in the valley are known to leak as well as the crush washers on the banjo fitting on the back of the fuel pump and o rings in the fuel bowl

[backwoodsboy]

*cough*E-fuel*cough*