Whirlpool 8100 series Top loader;the centre piece will not operate. so it will not turn or spin. everything else seams ok. It seams like the centre section is somehow disconnected?

basket drive and clutch is needed

If you're getting no motor noise, the most common cause is a bad lid switch. If the lid switch is good, I would suspect the timer. Here's a video that may help you access the parts.

http://www.youtube.com/watch?v=6XIsK3W_Qcg

the agitator dogs need replaced sounds like.4 little comma shape pieces underneath the top of agitator

Top loader? The basket at rest is slightly to the rear. Slow spin speed could be the brake hanging up or a worn clutch. If these are ok the spin tube bearings may be tightening up. Eric

This assumes that you have a basic Kenmore / Whirlpool top load, direct drive, neutral drain (it doesn't spin until the pump removes most of the water) machine.

First, see the Sears parts site for your washer:
http://www.searspartsdirect.com/partsdirect/index.action

Enter your model number (###.######) and you'll see a list of major sub-components with diagrams and parts.

Since it does everything else, the problem points to the timer.

See the following Whirlpool / Kenmore installation and service manual for top load, direct drive washers with an extensive troubleshooting section.

https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/f7e2147fa98b28cf85257122007475cb/$FILE/L-55.pdf

clutch problem

Bad/broken coupler/ http://www.davesrepair.com/DIYhelp/DIY285753.htm

This is a problem with the pump being stuck so the motor cant turn the whole thing. Turn the washer on its side, underneath you can acces the pump, which is connected to the motor by two long clips. remove the pump and take out the colg that caused it to get stuck.

Hi, Is the humming noise coming from the timer area? Do you know if it agitates ok?
When you have it in spin cycle, Try lifting the lid and see if the hum stops.
The reason for these questions is that on this model, if it drains the water out but does not spin, it is either lid switch, coupler, or transmission.
If it's the coupler, it will not agitate either.
Please let me know so I can assist you further.

Thanks
Vic

Since I haven't heard back on this in over a week, I will assume it's been resolved with the clarification questions.