Two for sure. BAL makes both the smaller units (wheel spread up to 10 inches), and the larger (up to 17 inches). They are worth every penny, and you won't regret buying them.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.