nandrus
+1y
The nv4500 is a good trans, the only issue with it is the 5th gear nut. The nv4500 can handle some big power if the input shaft is upgraded. All of the auto cummins guys want the nv4500 because it handles big power and its reliable. You can also buy an adapter plate that allows you to use the stock 1st gen adapter plate but in my opinion it is cheaper and easier to just buy a second gen adapter off of ebay.