ARB Wheel Carrier For Tj/Yj Not Jk Rear BarBuilt to the same uncompromising standards as our bull bars, all ARB tire carriers incorporate a heavy duty towing system and depending on the vehicle may accommodate one or two tires or a jerry can holder. There are many benefits associated with fitting a tire carrier to a vehicle. Many 4x4s have their spare tire positioned underneath the vehicle making it difficult to access and vulnerable to damage, particularly in harsh off road environments.