Yaesu VX-7R TX Mod
 

I just discovered what appears to be the "free band" mod for the US version of the VX-6R. It requires the removal of one solder blob.
Here's the procedure:

Turn off the radio and remove the battery. 
Remove the stick-on plastic cover . 
You will see two rows of solder pads and , 
one row of 2 and 4 is solder pads.

Counting from the left on the row of eight pads, solder  the "3" pad and remove the solder from "2" and "4". 
 
Reset the microprocessor. 
The radio will now transmit from 137 - 174, 222 - 230, and 420 - 469. The TX LED lights up in many other ranges but I have not checked power output anywhere but in the ranges I just mentioned.