Plastic rails retaining guides broke off.

First I removed all food items from above and in the Meat drawer. Then I removed the meat drawer from the slides and placed it on the counter. Then I removed the shelf that the slide rails are attached to and turned it upside down on some folded towels. Next I inserted a screwdriver (Flat tip) between the bracket and the rail I am about to remove. This released the locking tabs. Then I slid the old rail back and it popped off. I install the new rails without the screwdriver inserting them in the slots and sliding them into place. Next I reinstalled the glass shelf back into the fridge. Finally I inserted the meat drawer back into the new slides. The Job went rather easy, just take your time and don't pry the screw driver too much, just enough to clear the locking tab.