tmcmillan5

iTrader: (1)

Sorry for the question but I see it used all the time and I'm just in the dark.

Thanks, Tony

03sierraslt

iTrader: (22)

It’s very scientific.

99-07 NBS
07.5-13 NNBS

NBS- new body style
NNBS- New new body style.

Us truck folks are simple.

tmcmillan5

iTrader: (1)

Ok... So what does that make my 97 2 door tahoe OBS ?

wretched73

iTrader: (1)

Yes it does

Atomic

iTrader: (42)

They were made up when internet forums first became really popular in the early 2000s. So at the time, the 99-06 was the newest body style and the previous gen, 88-98, was the old body style. It kind of stuck so when the 07+ cam around it was the new new body style.

TXsilverado

iTrader: (19)

And the newest is NNNBS?

FFDP

iTrader: (2)

GM called it K2XX because of the assembly code and now the 2019 is like T1XX.