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Im new to forum, just bought a 2007 Tahoe LT, What is NBS ??
<2000 = OBS ( Old body style) - GMT400
2000-2006= NBS (New body style) - GMT800
2007-2014= NNBS (New new body style) - GMT900
2015+ = K2XX
Highlighted in red are the actual GM platform designations.
OBS/NBS/NNBS are strictly internet forum colloquialisms.