Hey guys, Is anyone running an aftermarket kit axle? if yes which one. I am still running my in factory one in mine. Car has been working great but still not 100% sure about the diff set-up/feel. It seems to work fine but feels gritty even if its on a fresh re-build/break in? I have felt other diffs and other are super smooth compared to mine. But still loving the car. Next big race Dec 11-13 in the great city of Minot ND

Nick K