Hello, I have a 2002 Dodge Ram Quadcab 1500 RWD 4.7 engine which has a bad differential which I am going to replace however the new differential that I am planning on purchasing says 31 splines which I dont really know if my truck has 31 or not. My friend said he would pull it off and tell me how many splines it has but he's really busy at his repair shop and I dont want to be bothersome so I would just like to know if anyone knows how many splines do these trucks have with stock Differential. Any imput on this would be really appreciated.... Thanks!!!