We currently tow a 2012 Grand Cherokee behind our motorhome. I'm buying a 2014 AEV Wrangler, lifted 3 1/2 inches. The Wrangler sits approx. 10 inches higher than the Grand Cherokee. Towing the Grand Cherokee behind the motorhome, the tow bar is level. How important is it to have the tow bar level when towing? I'd like to tow the lifted Wrangler but am concerned about the tow bar not being level due to the height of the Wrangler.