I don't know of anybody that has shafts for a wide track on the shelf. You will need to have them made...
Randy's, Moser, Dutchman or Superior
Moser probably has the quickest turnaround.
i use moser also i had to get the rears from them . chase is sending me a set of 80-up wagoneer shafts from all the measuring i have done they look the same i also borrowed my nephews 80 cheif and its the same so ill post back if they fit and that may solve the mystery of no shafts for wt axles.