The Stovebolt Site Forums The Shop Area Engine Shop jumping 4 speed Muncie trans-what gives?

The detent in the rail for second is either worn ,,or the spring isnt holding it in... or also could be the shift lever ball is worn where it goes into the fork...its probably the detent tho... those 420's thats the first thing to usually go is second gear...typically its the collar and gear thats worn or tapered...rather than the fork not going all the way in... all a sychronizer will do is stop the gear from spinning or slow it down to allow it to mesh into gear without grinding....the sychronizer usually wont cause it to jump outta gear or not allow it to go into gear all the way.....its a gear brake is all it is.... as in puttin it in low where it doesnt have a synchronizer it will grind a little sometimes.....same with reverse...