previous owner broke knobs by not pushing down to turn on, then leaving the D rings on when they switched them. Only 1 burner was operating

I carefully pulled the 3 D rings that were left on the posts of the burner controllers with a pair of needle nosed pliers, made sure there was nothing on the controller posts, then put the new knobs on. Make sure there are no D rings on the oven knob posts, 2 of the knobs were fine, they just didn't have D rings in them. Partselect was great. Items were received within 2 days. I would definately recommend them.