[Mr.Fixit]

The first time you put the wheels on can be a pain because the drive pins are not straight, even though they look like they are. Put antiseize liberally on the pins, try and mount the wheels. If they don't slide on you will see which pins are hitting at which places on the wheel's hub. A gentle tap with the lead hammer in the correct direction, and try it again. Do this a couple of times and you should get it on. The pins do come in different diameters as well, shiny ones are bigger than black ones, and do not put them on with an impact wrench, thet will open up in diameter a little if you do. After you get them on once, they come on and off much easier after some miles as they align themselves. Just be patient and quit trying to convince yourself that there has to be a manufacturing defect. I know what you are going through, I did too on the first dozen or so sets of Trigo's I mounted on cobras.