Were you trying to install the Grid mount in the car with the motor already installed in the mount? If so, why?
As for the CC 2200kV motor, it doesn't matter. I was using a CC Neu 1800kV motor in my car before I bought the Tekin setup, and I was using the Grid mount. Never a problem with the Grid mount with the CC or Tekin motors.
If the wires hit the rear brace, you can rotate the motor 90 degrees in the mount, and that should solve your problem. It did for me, at least. Nice thing about the Tekin is that it uses 6 mounting screws, so you can rotate it in 60 degree increments if you want (although you may have to remove the front end bell to only move it 60 degrees, which is not a big deal).
Also, I don't understand your comment about the spur gear. You should be installing the Grid motor plate without the pinion on the motor and without the motor installed in the mount, so I don't understand how the spur gear is causing a problem. If you're referring to the pinion gear, you install the motor mount screws before you install the pinion, so again, I honestly don't under what issues you're having.
This is the way I installed everything:
1. Install the Grid motor plate onto the motor.
2. Install the pinion on the motor.
3. Install the Grid motor mount (the part that holds the spur and the motor plate) into the car.
4. Install the motor (with the motor plate) into the mount.
5. Set mesh a little loose, then tighten (I found that the mesh tightens ever so slighly when you tighten the clamping nut).
6. Check mesh all the way around the spur.
Note that if the wires hit the rear brace, rotate the motor in the motor plate and reinstall.
That's a helpful list of instructions to install the mount Billy. Everything else ya said is pretty much in line with what I said as well. I think he's having an issue with the Grid motor plate being 90 degrees out of phase.
I didn't even THINK of the possiblity he was trying to install the mount WITH the motor in it. If that's true, no wonder the difficulty!