I had just rebuilt my transmission on my 2015 sportsman 570. I had put all new needle bearings, new drive and reverse chains, and new tensioners in it. Before putting the case together it shifted through the gears fine. Now that I have it all hooked up I can’t shift it out of reverse. It was stuck between reverse and neutral and was able to get it in reverse but now it won’t even budge. I’m clueless and just need ideas!