Originally Posted by
RossNZ
Please don't think I'm "flaming" you, I'd love to win with this truck, then I could spend my cash updating my other rigs, I have run center ball diffs, I did make my own ones though so maybe they didn't work as well as the Marcus ones, one thing I have noted on other boards tho, guys that own all three top brand trucks, don't tend to run this one outdoors, that to me means a lot as well when choosing the best outdoor rig.
No flame taken

sure others are coming
I did not have the v1 C-Diff, but the v2 has the pins that lock in or put more pressure on the balls as speeds and centrifugal force increases. From what I have read the pins were the missing link.
Maybe you can just order the machined spur, thrust washer, balls and pins to adapt to your homemade C-Diff, not sure. But after you have paid shipping it may have just made sense to buy the complete kit cuz you wouldn't want to pay for shipping the rest of the parts to NZ if it did not work with your parts.
Outdoor is where you will see the greatest benefit from the C-Diff also.