HEIGAR:
The JDs mount their brushguards to the FEL frames, but they can be
purchased separately. This photo is of one that goes with the 420 or
430 FEL, the series that came after the 60/70 series and before the
200x/300x/400x series.
I bought it with the intention of modifiying it for a non-JD tractor, but
I started from scratch instead. Anyway, without a FEL, you will have to
customize some backets to mount a brush guard. PM me if you want
this guard in JD green (cheap).