Problem assembling 6WD wheels from KOP

[simon911011]

We're a rookie team of a size like ten. We encountered this problem while we were putting on the wheels onto the chassis - the spacers seemed to wide that we have to use brute force to put them into position. Eventually when we put all six wheels on, the wheels do not lie on the plane. Three of the wheels make contact to the ground while the other three are about one or two millimeters above the ground.

So the questions are: 1) Is it normal to have to use force to put wheels and spacers into position? and 2) Will the wheels being on different levels be a huge problem?

Any help would be useful, Thanks!