Next, grind a relief into the bump that is located in the front housing next to the large end of the countershaft gear. Again, make very sure that you don't grind off more than necessary. Then cut a small notch into the shift fork. Now that you've customized your T-case for CalMini's crawler gears, you're ready to reassemble the T-case and reinstall it. Start by pulling the bearing from the large end of the countershaft gear. Press the CalMini-supplied bearing onto the small end of the new countershaft gear. Then do the same for the large end of the new gear.