crazyjr,
I had my t-maxx tranny mounted on the gmass chassis but, if I remember correctly, it would only fit on backwards due to the length of the disc brake. I believe the revo tranny would also need to be mounted backwards using custom mounts because of the difference in the mounting holes.
Here's a few pics of the t-tranny on my gmaxx:
The gmaxx motor mount rides verticle on the chassis close enough to the input shaft that a hole is cut in the center of the mount so the end of the slipper shaft with the nylock nut fits through. Due to the offset of the t-maxx tranny, this mount probably won't fit but, if you really wanted to use this mount you would first need to attach the mount on the rear instead of the front and compensate for the input shaft hole. The offset of the revo input shaft might actually help out in this case.
I'll be installing my revo tranny on the xbrace chassis so I'll know more about how it fits when I get my revo conversion.
If we could pre-order the conversion kits, I'd have mine ordered already :Love: