Thank you for submitting a question to Manage My Life. I know how frustrating it can be when appliances do not function properly.
Until you tear this dryer down its hard to say what all you will need. I have included the tear down instructions in the images below. You will need to ensure that the heating element is not shorting to the drum and making the sparks. I have also included a parts list image and marked the parts you will need to pay special attention to.
This can be a very labor intensive do it yourself project, I highly recommend having a trained service technician evaluate this problem. You can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services
Here is a link that you may use to view the parts list diagram and for parts purchases;
Sears Parts Direct
I hope this is helpful. Check the things I have covered here, and if I may be of further assistance as more details become available, please reply to this post.
Thanks again for using Manage My Life.