I definitely received two shorts instead of one long and one short and the shouldered part is the real problem. I imagine the local ACE hardware won't have what I need. If I can find something similar, all I need is about 1/4" more in length and it'll work fine. I was also missing the end pins that hold the outdrives in the diff assembly and already have those coming from Associated. I took a couple of Slash wheel hex pins and shortened them to get by for now. Argh!