2009 Volvo need some advise

HI guys i need some advise. My truck was shaking little at 55-60 and not long time ago have balanced both driveshafts ,I mean middle and last one did not balance first,but have nothing changed. Then have decided to balance and first but from the repair shop told me if i want to balance first they have to balance and other two which I already balanced. For me this doesn't make any sence but i am not a mechanic. After some inspection they said we have to replace career bearing and spacer on transmission yoke and everything must be OK. But now the truck still shaking and even worst i have vibration over 40 mph which is not disappear almost at any speed and this driving me crazy . Any idea what can cause this vibration and can i balance only the first driveshaft? Thank you in advance

If there is some good repair shop for drive line in Illinois please let me know, living in Chicagoland

 

Do I have to take all 3 shafts off or only the first one ?

 

The suspension leveler is ok but i just find out the driveshaft is not in the center of the frame. I mean the carrier bearing is keening it on left,and i have no idea why .probably they have not installed it properly

 

It was not like that before .