Ok I have this issue with my arb locker up front no leak when i engage until I give it some gas to climb somthing then my pump kicks on, it is not a steady on through driving it just bumps on the off then on then off like there is a leak. it only does this when fronts enganged. With the rear only it does not do this. When the pump kicks on I still don't hear any leaks. I looked under the hood and I have diff fluid shooting out of the front ARB relay at the pump. almost like im either creating a vacuum and its sucking fluid out or like its building pressure in the diff and forcingfluid back up to the pump. any fixes or ideas for this would be greatly helpful.