Hello guys, i need your help with this chaincase. Here is the story. Buddy has reverse installed at the dealer and decides he wants to change track after. I put track in and replace driveshaft bearings at same time (of course). Putting chaincase back together i notice a tooth is gone from the reverse idler gear. He gets new idler and lower reverse gear from dealer not in packages but good used and i install. Doesn't barely go any miles and the thing shears the reverse idler because it is not aligned properly! The reverse gear is sliding to the far side of the gear and engaging like 30% of the reverse gear. The lever seemed to have proper freeplay after it was put together. Is it possible they gave me gears with differen't offsets or.....? Any help would be much appreciated.