Been upgrading a SS cub. Has had an over ride in it for a while. (N down 1-5) Never had an issue. Decided to get a lockup and ditch the heavy ass springs. Put the lockup on with one nut per arm. 3 normal 3 hd springs. Take it out and it doesn't want to shift 3-4-5. Usually it'll shift 1-2 and 2-3. But it will not shift up under wot or part throttle. If u shift it a dozen times it may click to the next gear. Sometimes can't get In and out of neutral even.Any ideas? This isn't my only over ride banshee. But it's got me stumped. Checked eccentric (sp?) adjustment, clutch arm is correct. Any help would be awesome