Delivery Hoses, Lines/piping, And Fittings problems of the 2002 Dodge Dakota

(1( return lines to fuel pump cracked and leaking fuel down and under truck which is a 2002 3500 Dodge ram with a 5. 9 liter high output turbo diesel. (2)the metal fuel lines cracked and was leaking fuel out on the block , frame ,and under carriage this is and was a fire hazard under the hood of this truck if fuel heated sufficiently to combust into flames . (#) the metal tubes were replaced and show not signs of being struck or hit and signs of corrosion. The old parts were kept from the local Dodge repair . This shows not sign except fatigue as the part came from the factory and someone else could not be in a position to shut the motor off and not drive it except to the dealer for repair without a fire .