FIAT UNO COMO REPARAR Y ARMAR CAJA DE CAMBIOS QUE NO ENTRA LA 3ERA Y SUENA LA 4TA AL ENTRAR

This box was dismantled because the 3rd gear wouldn't engage and the 4th gear made a noise when engaging... the gearbox fork or pawl was repaired, the synchronizer holder or as it is also called, a new one was replaced, and the car was fine.