Uncategorized 2001 Rubicon question August 20, 2016 dstech On my 2001 Rubicon I have knob that says D1, D2 and ESP. Can someone tell me what D1 and D2 would be best to drive in. It seems that D1 is geared lower then D2 but not sure. Thanks Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related