peugeot 406 gearbox

The Haynes book says.Jumps out of Gear due to worn or Damaged gear linkage.2.Worn synchroniser unit.3.Worn selector forks. so i think you might have to remove the box and replace it with a rebuilt one unless you are good to rebuild it your self. what you do good luck. from Chris Addlestone Surrey

thanks mate car has been in garage and a new gearbox is needed