Hey there man. Typically if you have 4 way ABS, you'll have a speed sensor on each of your front two hubs, you can check for wires or an electrical connection at the two front wheels. If you don't have that, more than likely you have rear wheel ABS.
2005 Ram 1500 SLT 5.7 Quad Cab 121000 miles:Have a squeal in front, changed pads, not rotors, now going to replace hubs; My question is: how do I know whether I have 2wheel abs or 4wheel abs so that I can order the right hubs straightaway? Or does it matter. Thanks for the opporunity to post