vehicle engineers should have to work on cars for a minimum of 3 years before they get to design 1!!!!!! Because the problem with this country is, it's become to dependant on electronics . there was a guy back in the 50's that worked on a carburetor where he got 100 miles per gallon out of a gallon of gas so why do we need fuel injection , why do we need computer controled steering ,why do we need A.B.S. Assinine ,Brake, System!!! why do we need an ECM Engine, Control, Module, why do we need all this electronic crap

I purchased a nice body durango. nice truck running very strong and sound,it's an SLT 5.2 v8/318. i've thus far invested over 1200 dollars in the rear this includes labor.the problem seemed to exist in an proportioning valve for the rear brake system? thats what i've referred to as the problem. the brakes in the rear would seem to work slowing you down but they would hold, not lock, just (tighten) down. not sure if i might have any other options or if this is one of those (bugs). i would like to know if anyone would have a solution to this problem. thanks