i"m not sure if a Lincoln Navigator would have a sway bar, But my sway bar broke in my Chevy celebrity once and the whole car would rock side to side after turns and such. it's a bar by the rear axle and mine literally broke in two.
The EPA range estimate for the 2004 Lincoln Navigator is 308 mi. in the city, 448 mi. on the highway.
The EPA range estimate for the 2008 Lincoln Navigator is 336.0 mi. in the city, 504.0 mi. on the highway.
The EPA range estimate for the 2014 Lincoln Navigator is 392.0 mi. in the city, 560.0 mi. on the highway.
The EPA range estimate for the 2003 Lincoln Navigator is 308 mi. in the city, 420 mi. on the highway.
The EPA range estimate for the 2011 Lincoln Navigator is 392.0 mi. in the city, 560.0 mi. on the highway.
The EPA range estimate for the 2001 Lincoln Navigator is 330 mi. in the city, 450 mi. on the highway.
The EPA range estimate for the 2002 Lincoln Navigator is 330 mi. in the city, 450 mi. on the highway.
The EPA range estimate for the 2010 Lincoln Navigator is 392.0 mi. in the city, 560.0 mi. on the highway.
The EPA range estimate for the 2012 Lincoln Navigator is 392.0 mi. in the city, 560.0 mi. on the highway.
The EPA range estimate for the 2005 Lincoln Navigator is 308.0 mi. in the city, 476.0 mi. on the highway.
The EPA range estimate for the 2007 Lincoln Navigator is 336.0 mi. in the city, 476.0 mi. on the highway.
The EPA range estimate for the 2009 Lincoln Navigator is 392.0 mi. in the city, 560.0 mi. on the highway.