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cgreen 09-09-2005, 12:21 PM I am looking at buying my uncles 2003 crew cab 2500HD, or getting a new truck. There will be a 10K difference in price and I know his trucks not hurt at all, as he hasn't hauled anything over 6k or so. Powerwise, which should be better, a LB7 with a programmer on it's lowest setting or a 2006 LLY stock. I like the new 6sd auto, but would the fuel mileage difference be that much. Timberwolf530 09-09-2005, 12:59 PM I'd get the 2003 and let someone else take the depreciation hit. A 2003 with a programmer will run circles around a stock 2006. Fuel mileage will probably be better with the LB7. srode 09-09-2005, 01:52 PM I'd wait for 6 months after the LBZ motor is out and get one of them if they aren't having many problems. More HP, 6 speed, and probably better fuel economy. Scotty Seelen 09-09-2005, 04:24 PM A stock LB7 will usually win the race with a stock LLY. rcpd34 09-25-2005, 03:09 AM Depends on your financial situation. If $10k is no big deal, then go new. If you'll really be strapped for cash, stick with the '03 if it's equipped the way you want it. Just my .02. max_2500_hd 09-25-2005, 08:38 AM I have a 2003 duramax, If I put a superchip or hypertec programeron this truck how much will this increase my fuel milage empty and pulling a 11,300lb 5th wheel max_2500_hd 09-25-2005, 08:50 AM [quote=max_2500_hd;713439]I have a 2003 duramax, If I put a superchip or hypertec programeron this truck how much will this increase my fuel milage empty and pulling a 11,300lb 5th wheel.also will the LB7 dmax out perform LLY,what can I expect? cgreen 09-25-2005, 12:00 PM Depends on your financial situation. If $10k is no big deal, then go new. If you'll really be strapped for cash, stick with the '03 if it's equipped the way you want it. Just my .02. The 03 is a LT4x4 with Bose, Onstar and power everything, but my uncle does not know when he is getting rid of it. He wants an 06 cab and chassis. I am trying to get it at 27K. The new truck will be a crew cab dually LT1, or cab and chassis. rcpd34 09-25-2005, 09:03 PM The 03 is a LT4x4 with Bose, Onstar and power everything, but my uncle does not know when he is getting rid of it. He wants an 06 cab and chassis. I am trying to get it at 27K. The new truck will be a crew cab dually LT1, or cab and chassis. How many miles? 03 Duramax 09-25-2005, 09:30 PM I would probably go with the 03 awsome truck and 10,000 is a big difference in price. That extra money you're saving could be used for more performance mods and such. all depends on how long you can wait to get the 03. cgreen 09-26-2005, 01:18 PM How many miles? Right at 30K miles and the only thing he has done to it is bigger tires (285's). | ||