Replace the motor and endcap with the new updated design. The new motor shaft has two flats instead of one, and has much less chance of the corners being rounded off. Mine (also a 2007 Eclipse model), blew out on me while driving into a high headwind this Feb. Luckily I was'nt along side an 18 wheeler. I had to have my entire awning replaced. The guy who replaced it, said he had never yet replaced one that had blown out on the road, that had the new design motor shaft.
Ben & Sharon
2008 43' Holiday Rambler Scepter PDQ