833 OD vibration

Well I'm still trying to figure this out if anyone has anymore ideas. I had a new driveshaft made with 1330 ujoints, new slip yoke and new rear input yoke. I tried shimming the pinion down and up 2 degrees. I even tried shimming the trans up to change the ujoint angle. I replaced the engine vibration damper. I even tried removing the speedometer gear. The only part of the drive shaft that has any play in it is the slip yoke. the bushing and yoke are new. does anyone know the spec for trans end play? im wondering if the trans main shaft splines are worn out.