My 4X4 isnt working i think its beacuse of this hole in my transfercase. The light come on the dash and i cant find anything else wrong on the exterior of the case. i just need a idea of what im going to need in parts before i tear into it. thanks fellas

 

common problem

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Very common problem. When you get your new parts to replace it look into .Merchant Automotive :: Duramax and Allison Experts They have a great kit to fix this problem.