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Hello, it is not so much about hard parts, case, shafts etc it is about trans controls, The solenoids, , sensors and switches internally are much different between the 2 trans missions, You just cna not use any except the years you were told, others? sure they will fit but the PCM /TCM computers, wiring etc and shift controlling is very different than the 05-07 , you must find this range of trans years
I can not answer about 2x2, I think the output shaft is the difference, I have never been asked to chage one on this trans from 4x4-2wd vs versa. Yes,, you would have to swap out the valve body to converty between older years and current,All I can confirm is 05-07 is the same and prior is not and looking at diagrams of electronics, this is where the problem lies, They are not the same from older to newer, sensors etc are bolt ons per say but most all incorporated in the valve body, Hard to explain, I do know the trns part numbers are one digit difference between 4x4 and 2 wd and about a $ difference so sure it is all about the output shaft
not busy, It just takes a bit of time to pull up each of the various years and configs etc, I can honestly say, the wiring harness is different computer is different and trans controls are different per you original question, I know you added on about the add;l years and 2 wd, this is where it becomes a bit foggy, I was/am working on the 03 vs 05-07 I have all those diagrams and they differ in a big way between them, Sure solenoids bolt on etc , but all are internal on the valve body, The case, internal hard parts as mentioned prior are the same between the years / etc
I have all of this on my end as well, I do know for a fact wire colors are different at the plug, and they should both be 20 poin plugs, maybe onl;y 13 used, Not looking, I agree but wiring diagrams and pin numbers at the TCM are not the same, That is the first red flag, If you have all the connectors, do you have the wiring diagrams so you can see what I speak of?
I am not and would prefer to opt out, Its just getting too complex from my end bouncing all these different specs, years and diagrams, I was answering based on information I do know but do not want to say each and every little difference outside of what the correct trans should be, You seem to have as much of the information on your end as I, I am sorry I can not help so will opt out and open the post to the other experts, One should be along soon to continue helping,