I spoke with a representative of Blue Ox who told me the Blue Ox Rangefinder tow bar BX4322 is NOT compatible with the Blue Ox Bolt-On Base Plate Bracket Kit # BX88230.
Although you did not say what year your Jeep was it may have base plates available from Roadmaster and if it does and they use the XL, EZ, EZ2, or EZ4 Series brackets you can still use your Rangefinder with the Blue Ox Rangefinder II or III Tow Bar to Roadmaster Base Plates Adapters # RM-037.
If you let me know what year... view full answer...