Bruce and Sharon,
Just measured our 2012 2551 and it measures 27 feet 2 inches. That is without a ladder on back so it is to the end of the spare tire cover. The ladder might extend it a little, not sure.
Barry and Sue
Our 2010 2551 measures the same, 27'-2" to the spare tire cover. When we were shopping for an RV we took a tape measure with us because the motorhome had to fit in our RV garage. We never found a motorhome that measured the same as described in their brochure, some manufactures were off by a couple of feet. The PC length was not bad at 27'-2" compared to and advertised 26'-5", but you have to wonder how do they come up with these measurements and why not just put the actual measurement in the brochures.