the tailshaft has just been shortened and balanced...
althought i may take it to a 2nd party to check for balance since the original tailshaft guy wasnt interested in testing it for balance when i took the ute to show him...
another thing i thought of is that the output shaft on the gearbox has a fair bit of play in it...
althought it didnt vibrate in the rx7 it came out of im thinking maybe as i have a slight angle its causing the play in the shaft to slop around a bit...