I am swapping my wheels from sm to dirt for the weekend. I noticed a gap from the speedo gear housing to the fork on the speedo side? Is there supposed to be this gap? I did the procedure according to the manual but I keep ending up with this gap. With the axle nut tight I can move the speedo side fork left and right a good 3/8". What is the proper position of the speedo side fork tube on the axle. A gap or no gap?