Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

LLY or ?

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  #1  
Old 02-04-2011, 09:55 AM
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Default LLY or ?

Okay so Im pretty sure my truck is an LLY but my dad says he thinks it may be an LB7..... How do I figure out what it is? and ps the sticker isnt on it
 
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Old 02-04-2011, 11:02 AM
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8th digit of the VIN-
1= LB7
2= LLY
 
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Old 02-07-2011, 07:49 AM
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Did this help? Which one do you have? Do you know how to say thanks?
 
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Old 02-14-2011, 09:28 PM
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Dont know what year your truck is, but

D = LBZ
 
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Old 02-14-2011, 11:20 PM
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pop ur hood, look at the injectors, if u can see the injector, it is a lly, and if the injector is under the valve cover and all u can see is the injector line then its a lb7
 
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Old 02-16-2011, 11:23 AM
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Originally Posted by Rttoys
8th digit of the VIN-
1= LB7
2= LLY
Definitely easiest
 
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Old 02-16-2011, 01:06 PM
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or look at the build date on the side of drivers door if its a early 04 then is the lb7 if its a late o4 then its the lly. vin code would be the easiest...
 
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