Timer - Black 903091-9050

Turned off power and gas. took off top brace held on with four small phillips screws.Then pulled face plate loose from front of Clock/timer. Then removed four large phillips screws holding the brace for the Clock/timer.Then removed the second set of four screws from each corner of the Clock/timer and disconnected the power wire attached to the clock/timer. Put in the replacement Clock/timer and backed out the way I got in replacing each part. Turned on power and gas and set the clock/timer clock and the oven and broiler both came on and works fine. So easy couldn't believe. The repair estimate was over $300.00. I did it for the cost of the Clock/timer, just under half the estimate.
Thank you guys.
Rosemary Gray