[BornAgainBiker55]

This question may be posted somewhere around, but I didn't see it in my searches:
A few days ago I was watching a video linked from here regarding the G80 RPO Code indicating the Eaton Locking Rear Differential. I got curious and started looking up all my RPO Codes for fun. I've got a 2007 Silverado 1500. All my RPO codes seemed right / fine with the exception of "1LT". I have no idea what this one is, and I've only seen it noted on Malibu codes as the LT-I trim package. I've checked the sticker, it's not a wrong note on my end that I can see. I still have the original window sticker, and it's an LT-II Package on there.

Anyone have any ideas on the "1LT" RPO Code? If not, it's no big deal, I was just wanting a complete list for fun.

I'm using these two sites for my lookups:
http://www.gm-trucks.com/rpo-code-lookup/?find=1lt
http://www.c2e.info/rpocodes/gmrpocodes0through4.html

Thanks all!

 

[McClintoc]

Technically, since your truck is the LT2 pacakge, you have to thave the LT1 before you get to the LT2 package. As in, the LT1 has everything the LT2 has plus whatever extra options make it an LT2. Hence, they put both codes on the sticker. I have nothing to base this on; I'm just thinking out loud.

 

[RayVoy]

The 1LT code makes sense to me, the LT-II does not. All RPO codes are only 3 char/dig long and do not have any -

I suspect the LT-II is a marketing/salesman code and not a build code. You need to figure out what comes in the LT-! package and then what is added by the LT-II package. Then you can probably answer your question.

 

[Pikey]

Just go to http://www.compnine.com/vid.php and do the free 24 hour demo. You put your vin in and they list all the RPO codes and explanations. I did it and then copy and pasted them into a word document and saved it so I will always have it. It will list everything from alternator to tire size

 

[McClintoc]

The link Pikey provided is a nice one but be sure to copy/past like he said, the first time you use it. As far as I can tell, if you try to use it again, it wants you to pay for the info and won't show you anything until you do.

 

[stchman]

This question may be posted somewhere around, but I didn't see it in my searches:
A few days ago I was watching a video linked from here regarding the G80 RPO Code indicating the Eaton Locking Rear Differential. I got curious and started looking up all my RPO Codes for fun. I've got a 2007 Silverado 1500. All my RPO codes seemed right / fine with the exception of "1LT". I have no idea what this one is, and I've only seen it noted on Malibu codes as the LT-I trim package. I've checked the sticker, it's not a wrong note on my end that I can see. I still have the original window sticker, and it's an LT-II Package on there.

Anyone have any ideas on the "1LT" RPO Code? If not, it's no big deal, I was just wanting a complete list for fun.

I'm using these two sites for my lookups:
http://www.gm-trucks.com/rpo-code-lookup/?find=1lt
http://www.c2e.info/rpocodes/gmrpocodes0through4.html

Thanks all!

So was the RPO code 1LT in the glove box on the RPO codes sticker?

 

[BornAgainBiker55]

Yes, the 1LT RPO Code is directly from the glove box sticker

 

[buckmeister2]

Pikey, Just went to the link for decoding, and it is no longer free for the total decode. you enter you vin, they confirm they found it, and the actual build date, but don't show the codes without payment.

 

[Pikey]

That stinks. I used it last month and got the free demo. It used to be completely free.

 

[REV_THS]

Found this link on another site... Not sure if it explains what your inquiring!?

http://www.silveradosierra.com/uncategorized/list-of-my-truck-codes-a-gm-private-website-t14926.html

 

[BornAgainBiker55]

I'd say it confirms our suspicions that LT-II is an LT1 with extras. I was on Rock Auto last week ordering replacement ball joints and control arms, and I'm thinking an LT is an LT is an LT; as opposed to an LTZ or a WT etc. Every site I went to looking for good prices on the ball joints, the truck look up was always an LT.
I probably only noticed this because it was in my mind while looking up parts. Who knows how many times I've looked stuff up on it before.

 

[BornAgainBiker55]

Update and putting Thread to rest:
I was filing my paperwork for the alignment I just had done... and found the answer to my question. The window sticker from the truck states an LT-II trim package, the RPO code list from the dealer states the LT1 is a LT1 equipment package. That would fully confirm our thoughts that LT2 is an LT1 plus.
Thanks guys