1969 Massey 135: Wont shift into 3 or 4

[BlueSpruceHunter]

Hey gents. So I was working on the 135 today, no problems at all. She's running like a dream. I had to change the shift boots because I definitely have water in the hydraulic fluid, so need to eliminate any entrances. Anyways. After I changed the boots, it will shift into reverse or 1st and the high-low works fine but for some reason, it's not letting me shift into 2nd or 3rd. I opened the trans fill and tried jockeying around the gears with a long study screwdriver and it seemed to help a little but they're still not really cooperating. Anyone have any ideas on how to fix and why it's happening. I know that the fluid has been leaking and has water in it, so it's much lower and thinner than it should be. Don't know if that could also cause be causing issues. Help me out guys!

 

[BlueSpruceHunter]

Hey gents. So I was working on the 135 today, no problems at all. She's running like a dream. I had to change the shift boots because I definitely have water in the hydraulic fluid, so need to eliminate any entrances. Anyways. After I changed the boots, it will shift into reverse or 1st and the high-low works fine but for some reason, it's not letting me shift into 2nd or 3rd. I opened the trans fill and tried jockeying around the gears with a long study screwdriver and it seemed to help a little but they're still not really cooperating. Anyone have any ideas on how to fix and why it's happening. I know that the fluid has been leaking and has water in it, so it's much lower and thinner than it should be. Don't know if that could also cause be causing issues. Help me out guys!

I also meant into 2nd or 3rd in main post. Sorry it's been a long day