1350's are just more money. I agree with running flanges on both ends as well. If you do Tons later you just have to have them re-tubed and shortened. Way cheaper than buying new drive shafts. Only other drawback is that you are likely moving your weak link in your drivetrain to the R&P or shafts. Check your drive line angles too as 4 doors can generally get away with not doing a double Cardon shaft that will save you money and time on the maintenance. Make sure to get solid u-joints.