I have a 9′ slide in truck camper from the late 70′s. I also have a ’99 F350 dually pickup. The back end of my pickup measures exactly 8′ wide from out edges of tires and wheel wells. From inner most point to inner most point of my tripod jacks measures 6′. What can I purchase online to extend my stands out an extra foot on each side to allow the 8′ clearance? I have seen a box extension and a bracket but that still puts me under where I need to be. The jacks are currently mounted on the outer most point of the camper. Does anyone have any secrets or helpful suggestions besides to consult with my local RV place (they are not used to these type campers since I am from NJ)? It came with a 3 jack setup setup (2 jacks on L side, 1 on right) and not four like usual. I would only need to extend the two closest to the front. Also any home made extensions ideas are much appreciated! Thanks!