Hello all. I have a 2003 2500 with 5.9. The front driveshaft is toast. Looking for replacement, but a bit confused. Part number listed for my truck is #52123110AC but finding alot of shafts #62123326ab cheaper. they look and measure the same but being told they are for 3500's. If the length and serrated flange are the same will these work? Thanks, Jeff