48re or not

[spooledup]

I am not certain if my truck has a 48 or 47re. The window sticker says 48re , but no tow haul button. 2003 2500 SO 4X4

 

[Pawpaw]

There's not a button in the end of the gear shift lever?

 

[ThomasCook]

The 2003 version of the 48RE has an over drive (OD) off button on the end of the gear shift. The Tow/Haul is only on the 2004's.

 

[Pawpaw]

Is there really any difference, other than the name?



When I push my "Tow/Haul" button, all it seems to do is lock out overdrive. It still locks up in 2nd & 3rd.



Just curious, don't mean to hijack the thread.





jpdowdle,



If you go to any dealer and give them your VIN number, they can give you a printout that will tell you exactly how your truck was built.

 

[RMcCulloch]

BobHall - the GM "Tow/Haul" feature changes the shift points if "requested" by a switch while the 48RE does it automatically under computer control.



DC just changed the "name" of the OD Lockout button.



[I think I've only used mine twice when not decellerating. ]

 

[Pawpaw]

Originally posted by RMcCulloch

BobHall - the GM "Tow/Haul" feature changes the shift points if "requested" by a switch while the 48RE does it automatically under computer control.



DC just changed the "name" of the OD Lockout button.



[I think I've only used mine twice when not decellerating. ]

I kinda figured it was just a name change.



I'll sometimes use mine to decellerate coming off the highway.



In city driving (under 45-ish), I seem to get better fuel mileage by hitting the "tow/haul" button to keep it from going into OD. The only problem with that is that it also makes it a whole lot more fun to mash the skinny pedal. There goes the mileage!

 

[FDrake]

BobHaul, I thought I was seeing things. I seemed to get better mileage around town with the Tow/Haul on locking out the OD. The OD doesn't seem to be effective when doing local driving. Maybe I'll leave it on a while and see how the mileage does. Right now it SUCKS! About 14 MPG city driving. My 2002 6 speed and 1997 auto transmission got 17 MPG constantly. I am lucky to get 17 MPG on the freeways. I sure hope it get WAY better.

Frank

 

[JRMora]

Originally posted by jpdowdle

I am not certain if my truck has a 48 or 47re. The window sticker says 48re , but no tow haul button. 2003 2500 SO 4X4

If I remember correctly, all SO's had the 47RE



Juan

 

[Bertram65]

All automatic trucks built after 1/1/03 have the 48RE. Mine is an SO and it has 48RE on the window sticker.

 

[Gizmo 007]

Hey dude! Long time no see!



Remember me? Lol, how could you forget



You should have the 48RE, just the OD off label instead of the tow/haul label.



(finally broke down and got rid of "Thunder" bought an 04. 5 with an auto this time!) So you didn't like the 6-speed?