50" is the WMS to WMS of you 6 and the FSJ ones are 61.5" So an extra 5 3/4" per side extra....... Depends what your building....Tis a look I like but not for road going .......
These ones look like they are not quadratrac axles as rear axle is too centred and front axle has hubs FWHUBS
good price tho......they will need re gearing as they are bound to be in the 3.? Ratio so will need new carrier new r and p and locker and prob new rims unless you are already in that lug nut situation......

go for it
