Product review (5 stars): Fits like the old one.
We bought the range a few months ago.  We then used aluminum foil to line the bottom of the oven when making a pizza.  It turns out that bargain brand foil melts at oven temperatures and especially melts when it is only inches from the heating elements of the oven.

My learning experience was two fold.
1) Buy expensive aluminum foil.  It is 100% aluminum with no filler so it won't melt.
2) Don't put anything on the bottom panel of the oven.

Anyhow, there were just two screws in the back.  Unscrew them, put backwards and pop out the old one.  Drop in the new one, align the screw holes, and tighten.  Five minute job.