Product review (4 stars): Call a repairman.
I had to get this part because my son is The Hulk and broke my striker inside my washer.  I thought I could do it myself and get this doorlock out, remove the striker, and reinstall.  I ended up breaking the door lock part and had to buy this one.  Then I couldn't reinstall the part.
I ended up calling a repairman.  He reinstalled the part for me in five minutes.  I was going through the top.  He went through the front by removing the rubber gasket.

The moral of the story: Call the repairman.  It will cost you, but it will cost less.

BTW, I had a really hard time finding a repairman that was local.  So I asked him if YouTube and all these internet parts places were putting repairman out of business.  His response was no, people doing half the job and getting stuck was keeping him in business.  I think he was talking about me.