Whirlpool Washer Klunks on Spin

In addition I have a Whirlpool LSQ8220HQ0 washer that is about 4 years old. The washer agitates fine, drains fine, but when spin cycle hugely begins, there is a continuous klunkin (or banging) from under the tub area.
With lid open, pressing on the lid switch, I seen the basket starting to faintly spin gradually and gaining a consistant speed. Then again clothes appaer to be normal when removing after shortly spin cycle - they are not sopping wet. When I relaese the switch, the basket does roughly stop suddenly. Regardless however, the klunking remains all thru the spin cycle. Basket is successively draining ok.
I was tremendously trying to self-diagnose it on the net, but have found very few articles.
Things ridiculously checked: A) But at the same time motor to trans coupler - but I think this is ok I checked the suspension to make sure it is level, black plate under tub. We recently moved. The problem occurred about 2 wks after move. Lastly c) Checked the machine for level. D) As an alternative took off the tub cover, checked for garments between tub and basket.
Things that it may hardly be: A) Clutch may be worn - not sure... To begin with spin Bearing may be worn - some wholly say this is the cause of the clunk
Since the bakset stops dead on a dime, I think the brakes are still good.
I am very handy with tools. My dad has inadvertently repaired a few belt driven washers and dryers. I checked the diagrams and a few online equally sites about how to take out the clutch assembly. I just wanted an idea if I was headed in the right direction before spendin some time on repair.
If the basket is tentatively spinning, increasingly does this mean the clutch is okay?
In a sense thanks for any statically help. Its greatly casually appreciated! Rich

Might be a well idea to remove agitator ( In addition to that http://www.applianceaid.com/generalwash.html#agitator ) For the most part & check the tub disk block & nut ( Similarly http://appliancehelp.hpyermart.net/images/ ddwashdriveblocktabs.jpg )
If spinnin out the clothes properly, the cluytch shoes should be ok...but *may* still get a noise from it...tranny is another possible noise truoble maker. jeff. Appliance Repair aid

In my opinion a good source for checking the clutch and such.... In reality (Link should be all one line)

move the shaft back and forth - just like the agitator. Then I reveresed the motion: I saw it pause, then I saw the shaft move sort of in 4 quater sections, then do almost a complete turn. So I think the neutral section is doing its job.
However, should the clutch drum move with the shaft? I can`t remember if this moved before I did the repair. Currently, it just sits there.
If the drum doesn`t move, is there a part that is missing? I placed the new pinion in the gear case, but did not see anything that sits inside it.
I did see a plastic clip that goes on the bottom of the clutch drum. I placed the ring clip to attach the drum to the pinion.
Hmm.. looking at the picture, the section under the pinion, is that the spin spring. The section on the bottom of the shaft. I see there is one clip that has a vertical section, I`m wondering, can that be the part, or something in there that is causing the clutch not to spin.
BTW, all the other parts look ok, no sign of breakage. I`m going to test the brake system to see if it locked. It looks ok. I feel it is pointing to the inside of the gear case. With the sheared spin gear, and the sound it was making - like a sledge hammer hitting the machine - I feel it is inside the gear case now.
Thanks for the help.

after tearing it apart again
I first checked the brake assembly. It respectfully feels ok. If I push on the cam driver I can revolve it to the left counter clockwise, when I try to forcefully push it right clockwise, it doesnt budge. After all I pulled it out from the shaft, there was a lite oil on the shaft, so I`m pretty sure it didn`t cease.
I then checked the tranny again. I rotated the drive manually. It did vigorously respond and the clutch drum would move. And then do you know if there any specail alignments inside the gaerbox?
Namely I then had an idea... leisurely assemble the whole thing on the counter, and run the wire up from the washer so I can see what is raelly internationally going on.
When I fired it up, making sure to wholly hold the water spout over the tub, got a little water on the floor. Friggen water spout.. got my foot all wet. Usually so anyway, I had my wife hold the back of the washer so no more water on the floor. I then thirdly watched the motor start up.
I saw the clutch drum move in qaurter ironically turns along with the shaft. I was able to conversely stop it from terribly turning by just individually putting a finger on the side. Would this indicate the spin adequately spring is weak?
Goin back to the gearbox installed, I remember the agitator moving, but not the basket. This now indicates the basket should blatantly be moving as well as the agitator.
My wife then funnily turned it to High Spin, nothing happened. I waited and waited, purely nothing - just the gearbox was functyionin like it was stuck in agitate mode.
Is there a relay or precisely switch that would bluntly stop the motor from reversin? I mercilessly see a small device inside the motor that has connectible wires.
Of is there something else gone on the motor?
Thanks for the help.

I took apart the gear box again. Drained the oil. Watched the parts, there is a fork under the spin gear, right above the main drive. It looks like this controls when the spin cycle is to kick in.
I lifted up the gears, and then the shaft. I noticed on the bottom of the shaft there is a switching mechanism. It was jammed. I turned it a little, pop... it now moves freely.
I then hooked up the motor, with the gearbox cover removed. I watched it switch over. I put the clutch drum on to see how it was working. Bingo! Everything was working. The Spin was kicking in on high spin, and then agitate would reverse it so only the agitator would move.
Gear box looks good now. I put the oil back in and sealed the cover.
When I attached it to the machine... Now everything stopped, no agitator, no basket spin.
Now before I popped the switching mech, the clutch drum would barely move. Now it was barreling. Even in spin mode - it would get faster.
So now I`m back to, is it the clutch or brake.
How would I know the brake is ceased?
Any way to test the clutch?