Originally Posted by
alport78
My last quick question

- Is the set screws which holds the rear center diff coupler M3 or M4 ? I had some issues with that screw on the V4 conversion and finally modified it to a M4 screw and problem solved. BTW the coupler was made of the hardest metal that I ever worked on .It was so hard (cost me to buy some tools 5 times more expensive than the coupler

) to prepare the hole for m4 set screw..

. The new buggy has an M5 set screw there.