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2006 2500HD transfer case

JSchettler80
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JSchettler80 New Member

JSchettler80

Posted
Posted

I've got a 2006 reg cab 2500HD with the 6.0 in it with the manual shift transfer case.  My transfer case broke and I have 2 other 2500s both with the auto trac 4x4 t-cases, my question is how big of a project is it to replace my old trusty floor shift t-case with one of those push button ones? I see they sell a kit to convert those over but I'd have to guess having 2 whole trucks here I would have everything I'd need . Anybody done this before? 

davester Senior Enthusiast

davester

Posted
Posted

First, if those 2500's have the autotrac option (the 'auto' option, not just 4hi and 4lo), they would be light duty TC's, and aren't for your 2500HD.

 

You want to get a NP263HD transfer case (your current one is a NP261HD).

 

IDK what the effort is to do that swap, but it's my understanding besides all the parts and wiring, it also needs the some computers reprogrammed to work with the electric shift option, which is non-trivial to get done.

 

I would recommend sticking with the manual TC, because it just adds (IMHO) a number of new points of failure, particularly the switch and the encoder motor on the TC (the electric shift motor).

newdude Senior Enthusiast

newdude

Posted
Posted

Davester is correct.  Those old AutoTrac cases are the NP/NVG246 which was never used in the HD trucks due to the lower torque rating of the case.  

 

x2 on just getting a new, correct manual shift case.  

David89GMC Enthusiast

David89GMC

Posted
Posted

That Duramax will destroy those light duty transfer cases. Rebuild or find a used replacement for your manual transfer case. My '263' rebuild was only $500 a couple years ago. It's a push button electronic version without 'auto four wheel drive'.

davester Senior Enthusiast

davester

Posted
Posted

The o.p. wrote he had the 6.0, which is the gas engine, so he would have a NP261HD.

If he had the 6.6 duramax or 8.1 gas, then he would need the NP261XHD (which is stronger and has different spline counts, so it wouldn't even go together...

Formulabruce Enthusiast

Formulabruce

Posted
Posted

There are plenty of the NP261 T cases around. Yous can be rebuilt  too. Its not that tough.

So, to the OP, What does 'Broke" mean? ........

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