Im looking to have a trans built in the next few months before my trans is not worth much. I have no plans to up the power of my cummins. But want to have a trans that wont give me any trouble for a long while.I tow a trailer the weight is 10,000 loaded any help? I live in SO CAL and travel to other western states often so mountains are pretty much the norm. I have a trans guy here and he can do the work if I get the parts if thats ok or do you have someone in my neck of the woods that will do it .Thanks for your help