Ok so I am running the KD Extended track width kit on my Summit with 40 series Rock Crushers.
It works great. But the stock shafts are to short. I did the mod where you cut up 2 shafts to make one longer one. They fit nicely. But there not vary strong now. And today I had one skip a few splines when I got stuck in some rocks.
Looking for something that will work better with the KD kit.
Sent an Email to MIP but have not herd back from them yet.