I have a 2003 Blazer LS and a 2002 chevy suburban LS Now the Blazer doesnt have the Autotrac transfer case and the Suburban does would it be possible to swap an autotrac transfer case into the blazer??? I realise i would have to rewire for the auto button to work but i was wondering if its a direct fit? Because all the autotrac transfer cases are the same.

 

The difference is going to be that the Autotrac transfer case that the s-series trucks use is the NVG236 while the fullsize trucks use the NVG246. The NVG246 is physically larger and will require more than just wiring modifications, but take a tape measure to them both first to see for yourself. I believe it will bolt up to the back of the trans just fine, but you may find that your driveshafts have to be modified to make it work.

 

Ok thanks for the reply i will take a look i wasnt sure also is do u need to get a new PCM for the Auto feature to work correctly?