Today started out normally for a vehicle with a deteriorating clutch. But after driving 45. I began to notice a weird kicking throughout 2nd, 3rd, and 4th. Also, sometimes while accelerating in 1st, there is a loud, whining noise, similar to a noise I hear while in reverse.
Here's a video with the sound, sorry it's not the best.
Please post if the video is not working.

 

Synchros are more than likely shot. How much fluid is in it? Did it get run dry?
PS the vid isnt working.

 

Sadly I think it did run dry... I've never really been able to know how much fluid its in it.. But I feel like the output shaft seals weren't properly installed out possibly were even the wrong ones?(are all d series axles/transmissions the same size?) Is anyone selling a d series tranny with low miles in wisconsin?