Well it's not a LandMark cause they don't make one, but it couldn't have been easier. Me an SB did the wheel swap and the flush front axle was easier than stock. Drop the nuts on the right side clamp. flush end cap comes off since it seats with an o-ring and is pressure fit. Big nut is exposed that is part of the shaft, pull the shaft, drop wheel, insert wheel (this is where brake rotors and belt pulleys on all your wheels makes life easy) push shaft back through tighten down (the left side cap is evidently internally threaded and tapered) Put the right side cap and nuts back on tighten and you're done. 20 minutes start to finish of which we spent 10 examining the axle. Looks so clean and when we went to get my paint, Bob Mooreland's (land speed record holder) shop is next door. SB went over there and ordered one for around a Benjamin. PM him for the name of the MFGR since I can't remember.
Big Brian