spin cycle blues

So my Whirpool LSB6300PW2 stopped spinning my clothes out.
I know there are a lot of forums about simuar problems. I read one where the poster had to replace the transmission.. i don't want to do that.
The first thing i tried was to see if hopefully it would be the coupling... it wasn't. So i left the body off the machine and bypassed the lid switch, and ran a regular cycle to see what i could observe.
What i found was during the spin cycle the basin didn't move until i gave it a push. At that point it spun round and round in a slow and labored way.
I was hoping that maby it was a matter of something obstructing the rotation between the basin and the plastic reservoir that holds the water, so i took off the spindle and i took out the porcelain basin.
This timeI ran a spin cycle while observing the exposed shaft.
I found that there were two separate diameters to the shaft, one operates the agitator and the other is directly responsible for the basins spin.

The cycle showed again that the basins driver seems labored.

What coud this be?
If you are curious i took a video of the last cycle and uploaded it.
http://youtu.be/_ugkJj1G0-8

If you can help it would make me happy.

 

Look inside cabinet about 6 inches from floor you you may see a streak of oil. If there you need a gearcase top seal, clutch and drive coupler. lean washer back against wall to look under it.

 

I don't see a streak on the housing but I do see a couple droplets welling in the bottom of the gearbox. There is oil residue on the sides as well.

 

If i do not see a "streak" perhaps the seal may be good? Like i said there is a small accumulation welling up under the gearcase.

I looked up the clutch on AppliancePartPros.com
They have a video explaining how to replace the clutch. In it he refers to the worn out clutch saying that it may cause the the clothes to not spin out.

https://m.youtube.com/watch?v=7RS1l6t8efc

Does anyone know what exactly the brake cam driver does? Because i saw that spinning at a similar speed as the driver for the wash basin while i was watching it run. This was what i videotaped at 11:20 into the video i uploaded and linked to my original post.

 

Oil is in the clutch is the reason it won't spin. Top gearcase seal and clutch are needed. You have already replaced drive coupler.