Yep, the only ones, I designed the 10G output shaft changes, the KCK is for KC's Kruisers and yes, I have tried both types in builds.
The standard 10G has a 20T bearing mounted clutch bell like the 4G and 100T freewheel pulley and slightly longer 14mm diameter keyed shaft and 9t and 10T sprockets set screw that can be slid anywhere along the output shaft for easy chain alignment, especially nice for fat tire bike and when using a jackshaft shift kit.
I used my 10G standard shaft on this jackshafted build.
Then there is the 10G KCK Long Shaft version, my baby.
My topic about it here:
http://www.motoredbikes.com/showthread.php?44882-Grubee-KCK-long-shaft-10G-transfer-case
Same thing as the 10G above but with an output shaft that goes all the way to the right side.
I have also designed and fabed a new mounting base for this system that has a right ide carrier bearing and chain tensioner.
I put that in the hardest to motorize, smallest 'cool' thing thing I could find and it fits.
My topic here about it:
http://www.motoredbikes.com/showthread.php?44882-Grubee-KCK-long-shaft-10G-transfer-case
The 10G housing frame is the same as the 4G so all the parts are interchangeable.
The difference is the shaft and freewheel system on the concentric bearing housing output and smaller keyed set screw sprockets.
I have 30 basic 10G's and 20 long shafts coming for sale this summer.
You can contact from me web site if you are interested.
That is the new 10G's in a nutshell.