Thread: RPO Codes ....
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Old 08-17-2020, 08:32 PM   #3
hatzie
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Join Date: Oct 2008
Location: Wentworth, NH
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Re: RPO Codes ....

GM recycles RPO codes so you really need the codes for your model year.
They used to be found in the parts books. I scanned the 73-93 Light truck parts books.
I have microfiche of the 94 up T400 & 01-05 T800 parts books but not paper. The outfits I've found still want your firstborn child and your right kidney to scan fiche to PDF.
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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