I am looking to replace the narrow front on my 400 with a wide front. Currently there are two for sale near me: a Norden off of an M that would bolt right on or a Schwartz off of a 560. I have read the 560 front can be adapted to the 400 so I went to the A&I website and started looking at part numbers. The front saddle, steering bolster bracket and center tube appear to be the same and the rear saddle is different but a new one is still available and would be easy enough to change. However the spindles are different with the M-450 WFE having 13 7/8" tall spindles and the 560 having 11 7/8" tall spindles. Has anyone used the 560 wide front on a 400 and does it work ok with the 2" shorter spindles? Any opinions on the Norden wide front? The only reservation I have with the Norden is getting parts.