We took out the philips screws on the right and left side of inside of the oven and two hex head screws on the clip on the top of the oven in the front. Then using a slot screw driver pryed the oven liner out enough to remove old gasket and replace the new gasket. We did see in some online directions that we were suppose to remove entire oven from cabinet and loosen bolts in the back. But, we were able to get enough space to get the old gasket out and new one installed. We did use a 1/4" thick piece of wood on face of oven to prevent any denting of oven when prying out the liner of the oven.
Son-in-law unscrewed oven compartment; broken gasket was easy enough to remove and new gasket easy to replace; only problem was oven door would not shut tight. Tried shoving gasket harder into groove, tried turning on oven and heating new gasket to see if it would soften. Finally got it to close by pushing hard on left side of oven and inside light would at least go off and stay off.