Mercedes Actros gearbox problem!

[matei.cristian03]

Hi everybody...I apologize if i resume a discussion that has already begun but i have been playing ETS for about 7 years and so far i have not encountered this problem...Well, my problem is,that i use a G29 with shifter and i have all kind of trucks in my garages,but my Mercedes Actross,on manual mode gear they change the speed by only 4km/h.I don't have any problems in manual mode with any other trucks.Any ideeas for fixing this?Thanks for help.

[mojo_musica]

Telling us the make and specifications of the gearbox/engine would be a little more helpful.
All engines have a very narrow power-band, as little as 1,000 rpm, which is why 12 and 18-speed gearboxes plus splitters are common.