At us on the MAZ 5440A5 car it is established to a check point - 9JS135A, a problem big with gear shiftings, both on raised and on low gears. We know that a check point without synchronizers, and when switching it is necessary to do double vyzhy couplings but also three and more выжимов don't help. On MAZE refer to a check point. when switching roars, blows, breakthroughs are observed.Prompt please in what a problem. We hope for the prompt reply.