We finally fixed our refrigerator today, so I thought I would share the fix, and, how these residential refrigerators are actually installed. There are two "L" shaped metal brackets at the base, one in front of each fridge roller/foot at the front. This keeps the fridge from rolling forward out of the slide-out area. Once those are removed, you can roll the unit out of the space to access the rear. At the back, on the wall, are 3 "L" shaped brackets that screw to the back wall, and then extend out over the top of the fridge. These keep the unit from jumping up and down on rough roads. There is really no support of any kind for these on the back wall. Mine had most of the screws ripped out of the thin paneling, thus allowing the fridge to jump upwards, and tip forward. Then, you could not push the unit back under them, as they were resting against the back of the unit. When we took these brackets off, we found about 6-8 extra holes behind "each" bracket. This is where they were "guessing" the brackets should be placed to hold down the fridge, but they were wrong.
Anyway, we used some wall anchors and reattached all three brackets at the proper height so they just slip tightly over the top of the unit when we pushed unit back into place. Then we reattached the brackets in front of the two front rollers, and fridge is now solidly in place.
Rough roads were part of our problem, but factory assy. was the rest of the problem. Installers did not hook rear brackets securely, and failed to put them at the proper height to solidly hold the fridge in place. A QC inspection or a good PDI would not be able to see this flaw. It is an assembly problem.
So, if your residential fridge leans forward, or tips over forward, this is how you fix it.
Jeff