Compact Bowden Extruder MK7 Drive Gear with 1/8 size Push In Fitting

I have modified the MK7 drive gear version of the compact Bowden extruder found here:
http://www.thingiverse.com/thing:767951
to accommodate a 1/8 size push in fitting from here:
http://www.thingiverse.com/thing:835542

I have also added a mirrored version for mounting on the left side of your printer. I have these extruders mounted on a 5/16" threaded rod which also supports the z axis on my prusa I3. The mirrored version allows me to mount it onto the left side bar while still having t