Tamiya Falcon

The re-re grasshopper does not have the axle springs.
You may try to order it from Wai-gx or find it on e-bay.
A better solution is to perform the 5th shock modification and get rid of the springs.

11# xiang

There are many ways of doing it.  You can find many examples here and in other forums if you do a search.  Here is one example:
http://www.tamiyaclub.com/showro ... =81573&id=26162

As the space in a grasshopper is smaller than that in a lunchbox, I didn't use an oil damper.  I just used a grasshopper front spring and two grasshopper rear shock ends as the 5th shock.

Try e-bay.