Recently had the transmission rebuilt on our '02 V70 T5. Ran like a charm for for a couple weeks. Last week started getting vibrations at around 1,500 rpms. Continues until the tranny down shifts to 4th gear. Tranny repair tech has never seen anything like this. He's checked everything from motor mounts to wheel balancing. Tach does move when vibrations occur. He's thinking something to do with the torque converter. Any Ideas or similar problems out there?

 

Check Drive-shaft

 

where did u rebuild the trans.?? in a dealership?? is there sw upgrade available?? did he do a reset adaptation after??