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2003 chevy trailblazer_lt_ext
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268 Posts
Discussion Starter · #1 ·
does anyone know how to decifer what I am assuming is the chassis codes for our trucks? st155, st157, and, st158
 

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2003 chevy trailblazer_ls
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5,268 Posts
hmmm, would this be different from the GMT-360 platform name?
Ive never heard of those designations.
 

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2004 gmc
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26,181 Posts
Only place I've ever seen those designations is on the compnine.com data base, and I have to assume it's a build designation for the computerized assembly scheduler.

Are you looking someplace that demands you know the right response to a question before telling you a part number, or are you on the compnine site and just curious?

The typical place for optional RPO codes is in parentheses after the build code.
 

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2009 chevy
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6,431 Posts
As far as I know, they're just program codes.

GM uses a 3rd party program to provide a "build your own" service on the WWW sites. I think the 3rd party program use these codes to describe the different models of the 360/370 chassis.
 
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