Since I am the resident expert on d-lines I will pipe in.:redneck::haha: (don't ask how I became such an expert!:redneck It really depends on how much money you want to spend....Cheap = go square tube and go! If you want to do a nice setup, mMY suggestion would be a flange on the front of your D20 and run an All-pro or other toyota long-slip. :awesomework: This way you can get the most operating angle out of your front shaft, compared to the 1310 joint. You can decide from here whether or not you need a CV or single joints at each end. I run single joints at each end on mine since i dont run it at highway speeds. I had mine built brand new LOCALLY! for about $250 total.