[oldgold70c10]

Originally Posted by FirstOwner69

The GM Heritage Center has vehicle info kits that list RPOs (and lots more) available for each model year.
https://www.gmheritagecenter.com/gm-...tion-kits.html

That is correct. You will need to know what model your truck is and what the RPO's that it has when using the factory manuals, service, overhaul, or assembly.

Some stuff is not RPO specific, so it will just list the models of that apply to whatever is being shown. A longbed fleet 1/2 ton is a model CE or CS 10934, depending on whether it is a V8 or a six, regardless of it being a plain C/10 or a loaded CST/10. The manuals treat all trucks as though they are no-option base models, with info on RPO's treated as separate items that are installed along side or in place of base equipment, depending on the RPO.

So, if the manual says CA10900 for some detail, it means that detail applies to all 1/2 ton 127" wheelbase models, wether it's a fleet, step, suburban, etc.