rusted plastic coated steel rack needs replacement

replacing the rack was easy - but first we had to swap out the plastic spay tower that twist-locks onto the new rack. My smart wife figured this one out, despite the lack of any trace of instructions (the less astute amature repairperson would have mangled the whole shootin' match attempting to make the change); that said, the rack was not a "one-to-one" match, as it lacked the original's high left sidewall and a few other minor differences that did not affeect the overall performance of the part - a not uncommon occurance in the aftermarket parts world.