Just by looking at these vin numbers which trucks have the LLY and which ones have the older LB7?

1. 1GTHK23224F183507
2. 1GTHK23214F182221
3. 1GTHK23174F140725
4. 1GTHK23164F170847

1 & 2 are LLY 3 and 4 are LB7


1. 1GTHK23224F183507
2. 1GTHK23214F182221
3. 1GTHK23174F140725
4. 1GTHK23164F170847


eighth digit 1 = LB7


eighth digit 2 = LLY

They were all built in Flint which means they're all Crew Cabs as well as two being LLY's.....http://www.dieselplace.com/forum/smileys/Geek.gif

Here is a handy chart.



<TABLE width="100%" border=1><A name=tab1-889043><A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=889043&amp;evc=sm&amp;pubid=437&amp;cellId =47882&amp;mspsdsubkey=2686#tab1-889043" target="_blank">
<H4>Vehicle Identification Number (VIN) System</H4></A>
<T>
<TR>
<TH vAlign=bottom align=middle>


Position</TH>
<TH vAlign=bottom align=middle>


Definition</TH>
<TH vAlign=bottom align=middle>


Character</TH>
<TH vAlign=bottom align=middle>


Description</TH></TR>
<TR>
<TD vAlign=center align=middle>


1</TD>
<TD vAlign=center align=middle>


Country of Origin</TD>
<TD vAlign=center align=middle>


1


2</TD>
<TD vAlign=center align=left>


United States


Canada</TD></TR>
<TR>
<TD vAlign=center align=middle>


2</TD>
<TD vAlign=center align=middle>


Manufacturer</TD>
<TD vAlign=center align=middle>


G</TD>
<TD vAlign=center align=left>


General Motors</TD></TR>
<TR>
<TD vAlign=center align=middle>


3</TD>
<TD vAlign=center align=middle>


Make</TD>
<TD vAlign=center align=middle>


B


C


D


T</TD>
<TD vAlign=center align=left>


Chevrolet Incomplete


Chevrolet Truck


GMC Incomplete


GMC Truck</TD></TR>
<TR>
<TD vAlign=center align=middle>


4</TD>
<TD vAlign=center align=middle>


GVWR/Brake System</TD>
<TD vAlign=center align=middle>


E


F


G


H


J</TD>
<TD vAlign=center align=left>


6001-7000/Hydraulic


7001-8000/Hydraulic


8001-9000/Hydraulic


9001-10000/Hydraulic


10001-14000/Hydraulic</TD></TR>
<TR>
<TD vAlign=center align=middle>


5</TD>
<TD vAlign=center align=middle>


Truck Line/Chassis Type</TD>
<TD vAlign=center align=middle>


C


K</TD>
<TD vAlign=center align=left>


4x2


4x4</TD></TR>
<TR>
<TD vAlign=center align=middle>


6</TD>
<TD vAlign=center align=middle>


Series</TD>
<TD vAlign=center align=middle>


1


2


6</TD>
<TD vAlign=center align=left>


Half Ton Nominal


¾ Ton Nominal


½ Ton Luxury</TD></TR>
<TR>
<TD vAlign=center align=middle>


7</TD>
<TD vAlign=center align=middle>


Body Type</TD>
<TD vAlign=center align=middle>


3


4


9</TD>
<TD vAlign=center align=left>


Four-Door Crew Cab or Utility


Two-Door Cab


Extended Cab</TD></TR>
<TR>
<TD vAlign=center align=middle>


8</TD>
<TD vAlign=center align=middle>


Engine Type</TD>
<TD vAlign=center align=middle>


X


V


Z


T


U


N


1


G


2


--</TD>
<TD vAlign=center align=left>


4.3L V6 MFI (LU3)


4.8L V8 MFI (LR4)


5.3L V8 MFI (L59)


5.3L V8 MFI (LM7)


6.0L V8 MFI (LQ4)


6.0L V8 MFI (LQ9)


6.6L V8 DSL (LB7)


8.1L V8 MFI (L18)


6.6L V8 DSL (LLY)


5.7L V8 CPI (L31)</TD></TR>
<TR>
<TD vAlign=center align=middle>


9</TD>
<TD vAlign=center align=middle>


Check Digit</TD>
<TD vAlign=center align=middle>


--</TD>
<TD vAlign=center align=middle>


Check Digit</TD></TR>
<TR>
<TD vAlign=center align=middle>


10</TD>
<TD vAlign=center align=middle>


Model Year</TD>
<TD vAlign=center align=middle>


4</TD>
<TD vAlign=center align=left>


2004</TD></TR>
<TR>
<TD vAlign=center align=middle>


11</TD>
<TD vAlign=center align=middle>


Plant Location</TD>
<TD vAlign=center align=middle>


1


E


F


Z


G</TD>
<TD vAlign=center align=left>


Oshawa, Ontario


Pontiac, Michigan


Flint, Michigan


Fort Wayne, Indiana


Silao</TD></TR>
<TR>
<TD vAlign=center align=middle>


12-17</TD>
<TD vAlign=center align=middle>


Plant Sequence Number</TD>
<TD vAlign=center al

handy indeed sid


all GMC 2500HD crew cabs


very interesting y2kboti, now was this just a test or are you looking at a new truck?

I am in the market for a new Durmax but am having a hard time finding ine with the options/features I want. I was ready to place an order but the dealer started balking about the price so I told them take it or leave it and they choose not to accept my business. GMC or Chevy it doesn't matter. I may have found a GMC CC LB SLE 4x4 D/A LLY a ways from here but as of last night they had not unloaded it. Problem is I can't do anything until I sell my current truck and I will not trade it in.