05 transmission in 02 truck?
- Thread starter jrfoust1
- Start date
Cooler line fittings are different size/thread. You will need to swap bellhousings or get different cooler lines. The hose kits for replacing the cooler hard lines with hose often have fittings for both the ‘01-‘02 and ‘03-‘05 in them. Other than that no difference other than the ’05 has ( I think it’s the “G” solenoid ) in it. But yours won’t have the wiring for it in the harness so it won’t do anything.
This is all Correct including the G solenoid.
I would just like to add along with the smaller cooler fittings in the bell housing, that if you try and put an early 01-02 trans into an 05 you will get a Phantom Code for that "G" solenoid but I am told it will still function correctly and you can disable the code with EFI live.
I thought you would only get a code if you added the wire for it that the 7’s didn’t have? It was my understanding that if you used your normal external harness it didn’t even know it was there and no code would come active.
Conversion cooler line fittings or swap the bell housing
Likely swap your NSBU
The g-trim VB can remain, it would just be inactive. G trim sends additional fluid through the cooler at low rpm (essentially idle).
Likely swap your NSBU
The g-trim VB can remain, it would just be inactive. G trim sends additional fluid through the cooler at low rpm (essentially idle).
According to the "Allison King" -Evan. He told me yesterday that if you put an early 01-02 trans in an 05 truck, the 05 truck would be looking for the missing G solenoid and set a Phantom Code. But that the trans would still work and you could disable that code with EFI Live.
So if the 04.5-05 LLY had the G-Solenoid and you put a trans from a truck that didn't have it, It would report that code.
I recall Mike say something to that effect too but I am not sure what post it was in.
I'm not aware of any method of disabling codes in the TCM with efi live. And the only code in the ECM is going to the the P0700
LB7: - Year Differences
What is the differences of 01-02 and 03-05 transmissions ? Can you put an 03-05 trans in a 01-02 truck ? And if so is there any changes to make in efi live? Sorry if this as been asked before. Thanks
www.duramaxdiesels.com
Apparently it throws a code for the G solenoid mabe on the TCM side.
LB7 trans in LLY
www.duramaxforum.com
Didn't see anything about disabling codes????. Good info in that first link but no discussion about turning off the codeLB7: - Year Differences
What is the differences of 01-02 and 03-05 transmissions ? Can you put an 03-05 trans in a 01-02 truck ? And if so is there any changes to make in efi live? Sorry if this as been asked before. Thanks
Apparently it throws a code for the G solenoid mabe on the TCM side.
LB7 trans in LLY
This is if you're putting a non g-trim into a g-trim truck. If going g-trim into non g-trim there won't be a code issue.
Maybe you 0 out the tables or something for the G solenoid? I am No Tuner...
Maybe some of them have edited the code tables with CAX files in the background???
It's really a shame EFI never really finished looking for more tables and adding the Diagnostic portion to the trans side.
Definitely would've been nice to have more development for the Allison tuning. So much more potential left on the table. But I guess what we got was good enough for 99% of the people that tune the transmission. And 99% doesn't even touch it. So a very small market for sure
It's been awhile since I tuned one. But my recollection was that none of the codes where editable like in the ECM. So as you say, if anyone's doing it, it's probably HEX editing or CAX files. But as an alternative, couldn't you just wire in a low ohm resistor to the TCM pins where the G solenoid would normally go?