Product review (3 stars): The part is super expensive for a simple peace of plastic
See the  Alexander MacDonald review.

As Alexander says the end of the auger rubs on the housing. One of the reasons may be that the hole in the PLATE HELIX LOCK (part linked to below and photo) had gotten bigger and no longer stopped at the correct point on the auger.

I hammered mine out so that it would stop at the correct place again. I'm not sure how long that will work for. I will keep an eye on it.

<a data-hook="product-link-linked" class="a-link-normal" href="/GE-Part-Number-WR17X11458-PLATE-HELIX-LOCK/dp/B0093R1QEK/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">GE Part Number WR17X11458 PLATE HELIX LOCK</a>

The part is super expensive for a simple peace of plastic.