Hi everyone!

I have a question.
I don't know if I'm in the right section for questions so if not I'm sorry then.

So I have a 4-Tec 3.3 but the some wheels are going from left to right.
I uploaded to youtube so you can see what I mean
http://www.youtube.com/watch?v=K9l-3qZsocw

Hopefully somebody can help me.

Kind Regards,
Yannick