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Discussion Starter #1
2 questions for yall experts here. Whats the difference between an 04 and 04.5 cummins? Was the G56 offered in either one of these 04 models? Thanks
 

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89-93 First Gen 12V rotary pump
94-98 Second Gen 12V P-Pump
98.5-02 Second Gen 24V VP44 electronic pump

2003 S.O. Federal Emissions: 250HP/460lb.ft. Available with NV4500 or 47RE
2003 S.O. Calif. Emissions: 235HP/460lb.ft. Available with NV4500 or 47RE
2003 H.O. Federal Emissions: 305HP/555lb.ft. Only available with NV5600
2003.5 The 47RE was replaced by the 48RE automatic transmission and available with the H.O.

2004 S.O. Calif. Emissions: 235HP/460lb.ft. Available with NV4500 or 48RE
2004 H.O. Federal Emissions: 305HP/555lb.ft. Available with either NV5600 or 48RE

2004.5 (50 state legal) 325HP/600lb.ft. Available with either the 48RE or NV5600

2005 (50 state legal) 325HP/610lb.ft. Available with either the 48RE or NV5600

2005.5 The NV5600 replaced with the G56 6spd manual gearbox.

2007 6.7L Cab and Chassis 305HP/610lb.ft with either the Aisin 6spd Automatic or the G56 6spd manual gearbox

2007.5 (50 state legal) 6.7L 350HP/650lb.ft with new 68RFE automatic and 350HP/610lb.ft with G56, got this info from ram3500dually thanks:thumbsup
 

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Discussion Starter #3
Thanks, I found another version of that and wasnt sure which one was right.
 

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I was just about to start a thread asking the same thing, did a search & BAM!

My 05 Duramax had 510 ft/lbs. Amazing STOCK the Cummins has 100 FT/LBS & 15 HP over the GM product right out of the factory!!
 
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