I'm struggling with the terminology here. When you say Lock Outs do you mean what we call Free Wheeling Hubs? If the outer stub axle is the bit that slides through the hub into the Free Wheeling Hubs is bigger (diameter?) then do you have to change the front wheel bearings too?
Rhino, freewheeling hubs and lockouts are the same thing.
The following is from an article on Aisin hubs (source forgotten)
".....many of the parts are interchangeable between hubs from differing vehicles. For example, you can use a junkyard hub from a Toyota for parts to repair a Suzuki. .........The Suzuki and 30-spline Toyota hubs are virtually identical except for the inner hub. The grips on the dial of the 30-spline Toyota hub stick out slightly beyond the cap, where on the others, it is flush. Functionally, the dials are interchangeable between the Suzuki and 26- and 30-spline Toyota hubs. The 26-spline (IFS) Toyota hub has a deeper backspacing between the mounting flange and the inner hub than the other hubs, in order to clear the spindle nuts. Because of this, the Suzuki or 30-spline Toyota hub body will not fit on an IFS toyota wheel hub, but the reverse should work; i.e. a 26-spline Toyota hub body should be usable on a Suzuki or 30-spline Toyota hub. "