Hammer, I think I understand the question. On my 95, the plastic housing is basically held by friction and the resistance of the cable. When I took the wheel off for a new tire and reinstalled it, I found that the speedo drive housing was free to turn until the axle snugged up in the last turn or less. So I fiddled with its position a couple of times until I was happy with the way the cable curved up from it, then tightened the axle.
If you have loosened the clamp screws at the bottom of the left fork while trying to loosen the axle, the threaded insert may have shifted toward the wheel (don't ask how I know this). In that case, the axle may not pinch the forks in on the speedo drive housing properly to hold it by friction. In my case, I just tapped the axle in with a wooden mallet while it was threaded only halfway in. This seated the insert and I tightened the clamp screws on the bottom left leg and then finished installing the axle while positioning the drive housing as mentioned above.