[Yosemite Sam]

Although they look nearly identical while on the machine, the 1X6/7 fenders are somewhat different.

The bolt holes in the foot rests are in different places and there may be enough difference in the Trunk/battery box that it would be difficult to mount.

I myself, have never tried to set one model fender on the other model tractor, so I don't know if the 147 fenders would set down and rest as they should.

How about giving it a try and then telling us specifically what the differences are? Then we will know for sure.