V.I.N. decoding

[clayton400]

Is there anyway to tell if a truck came from the factory as a Silverado, Scottsdale or Custom deluxe?

[roundedline]

Not from the VIN.  If the RPO codes are still in the glovebox that would be the only way to confirm it.

Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project

[xtreme80]

If you do have those RPO codes, you can look that info up here...

www.73-87.com/7387info/7387trimlev.htm

[clayton400]

Thanks guys

[Prong]

Found this while snooping around, it may help...
http://4x4.straydogs.ca/gmrpo.html

[mike357]

is there another way of telling what ratio the truck has? i would like to figure it out without taking the cover off and counting teeth.

[red4wd]

is there another way of telling what ratio the truck has? i would like to figure it out without taking the cover off and counting teeth.

look at the 3 letter codes on the white sticker in the glove box...GU4=3.08, GU6=3.42, GT4=3.73, GT5=4.10.  That is assuming that the factory rear end is still in the truck.

[mike357]

well thats the problem all the RPO's in glove box are labeled with what they actually are and none of them mention anything about gearing.

[Captkaos]

If it isn't listed, it will be a 3.08 for 12bolt and 2.73 for 10bolts.  This is assuming it has never been replaced.