Options and quality mainly. If you like lots of extras than go
with a top of the line.
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The King Ranch is top of the line with more options but in
reality they are the same truck.
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This site has an extensive line of table-top lecterns n
traditional and contemporary designs and a variety of materials and
options: www.lecternsandpodiums.com
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It means that its Chevy's top of the line model for that truck
the best you can get with all of the options possible for the
Tahoe.