I found myself a tad perturb that Google returned zero hits when I searched on my exact model number of my recently deceased garbage disposal, "175.605530." What a bummer.
So if you find your self in a similar situation, try one of my links below. They just might help whatever ails your kitchen disposal.
1) Sears Part List for disposal model number 175.605530.
2) Trouble shooting link, "It hums, but it won't spin"
3) Garbage Disposal Problem, someone else has a similar problem.
4) Waste King Stainless Steel Garbage Disposal [via Amazon]
As for me, it's time to make another trip to the local Sears outlet to purchased a new disposal unit.