You have an open diff, all titans have them. You might have abls, which will apply the brakes to the wheel that is spinning, which in turn sends the power to the wheel with traction. The easiest way to find out is to get in grass or dirt and spin your tires if you get a slip light on the left side of your instrument panel than you have abls. I don't know if all titans have abls or not.tre5 said:I just picked up my 2wd Titan. I replaced a 2006 F150 with this truck and I already like this Titan way better. I do some trips to the dunes, and other places, where it was nice to have the 4x4 in the f150. My question is... on my new 2008 Titan SE with the factory installed tow pkg., do I have a limited slip or anything? Or is it just an open diff? Or is there a way to tell. More questions to follow in the tuning area, but one at a time.