[suicideneil]

You can use some fuel tubing or a spring/ O-ring seal in the drive cups to stop the dog bone from rattlng, thats commonly done in these situations.

You can use an M3 tap to make sure the antenna mount is threaded all the way through, allowing you to have the chassis the correct way up (or is it?...) and still mount the antenna correctly.

Dual steering servo setup? Ha-ha, head on over to my thread in the GorillaMaxx section- 'Another Gmaxx is born' - I have a dual steering servo setup using two HS645MG servos and a cheap modified aluminum bell crank kit, works really well.