On Wednesday, June 12, 2013 8:04:13 AM UTC-7, Greg Delp wrote:
Did the one you make have a wheel or wheels on the tow bar portion? That sounds like a good alternative.If the tow bar portion was strong enough to prevent any leaning of the post section it would evenly distribute all the stress along the entire wall of the socket in the tail.

Greg,
The tow bar I made just attatches to the axle of the origninal 'Wheel-on-a-post'.