1973 CJ5, 3-speed, 258. I’ve had the Jeep a couple of years, and have been doing little projects as I go, but I think it sat a while at some point in the past. While driving around town the last couple of days, I started noticing that it was not shifting smoothly. Then it progressed to becoming difficult to get into gear. Then, it would not go into any gear at all. If I came to a stop, I’d have to turn the engine off to shift it into first, then struggle with 2nd and 3rd on the go. Occasionally, it would shift normally again, and then revert back to the struggle. I changed the 90wt gear oil last year, with very few miles since then and no significant leaks. It was very hot in North Carolina yesterday, nearly 100, wondering if that contributed to the issue. I don’t think it’s the linkage, because it still seems to be going in the right direction, but takes some force to get it into gear. Clutch release point seems normal, about halfway down. Any thoughts where to begin?