2004 Which auto tranny
05-05-2007, 12:07 AM
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2004 Which auto tranny
Ive got a friend that is looking at buying an 04 with 23000 miles. I told him that the 48re seems to be a better tranny is there anyway to tell which one it is. I was under it today, and it has a cat so im thinking its maybe a 600 or an 04.5 but im still not sure if that will tell which tranny it has. Anyone know? Thanks Joel
) and it has a 48RE. They all came with the 48RE.
05-05-2007, 05:28 AM
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The 48 was supposed to be & IS a better tranny than the 47 which had numerous failures in my neck of the woods on guys w/big gooseneck cattle
trailers. The torque converter is the weak link in the 48. Anything much past
100 hp over stock on it & you'll need a torque converter & valve body upgrade.
trailers. The torque converter is the weak link in the 48. Anything much past
100 hp over stock on it & you'll need a torque converter & valve body upgrade.
05-05-2007, 05:41 AM
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take a look at the engine data plate, if it is the 305 hp HO , it has the 48 RE
also look at the passenger side firewall, if the is no Powertrain Control Module there, It has the 48RE
also look at the passenger side firewall, if the is no Powertrain Control Module there, It has the 48RE
05-05-2007, 10:27 AM
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Here is a break down of the motors and trannys based on year:
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.
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.
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