popping out of 2nd gear

[57chevyman]

Hey all, Happy 4th of July!

im having a problem with my truck... its a manual saginaw three speed on the floor. i recently replaced the bushings in my aftermarket shifter .i think its the Mr Gasket one. the new bushings made the shifter feel nice and new... but it didnt resolve an issue i was hoping to fix...

it doesnt feel like its shifting into 2nd gear the right way... and many times its popping out of gear while in 2nd. when i go to push the shifter forward to get it back into 2nd gear, theres no travel at all and it feels like its barely doing anything. sometimes it does shift into 2nd normally and stays there and when it does, i can feel the shifter traveling the distance it needs to. any advice on whats going on?