Tranny problem?
 

Ok guys in my 79 930 I have a 915 transmission that was rebuilt a few years ago. About a week or so ago I started noticing a vibration from the shifter and earlier I went from first to second and then BAM the whole shifter is vibrating. I can feel a small vibration in all gears but in second gear the shifter shakes and I can hear it very well. Did I blow second gear or did a bushing break loose somewhere?

nevermind the coupler behind the seat had my boost controller line stuck.