Transmission / boîte de vitesse

[fazy]

Hey Guys.

I Have problem with my transmission (grarbox) in 308CC 2.0 HDI 163. The problem is wired sound when accelerate (1700-3000RPM) but only when engine . transmission is warmed up, and always when accelerate harder. Then next problem is vibration on the gearbox i can feel it good enough about 170km/h or faster. I Have an idea to replace gearbox or the new one.

My gearbox is 20MB26 now i have 3000 RPM ( 150km/h ) its a little bit short in my opinion, the question is, can i it there gearbox from RCZ 20MB25 ?? there is 3000 RPM (160km/h), or 508 gearbox 20MB28 and 3000 RPM about 170km/h

I'm not sure that gearbox 20MB26 can be replaced for 20MB25 / 20MB28