Kenmore 70 Series Washer will not work in Spin Cycle. I repaired in January (replaced motor coupler and clutch guts). It worked but was noisy. It quit again last week. I took apart and all is in order. When I spin transmission in agitate it works, but will not work in spin mode. The Transmission works freely both ways, telling me that the clutch system is bad. Am I missing something here?

Replace the motor your centrifical switch in the motor is bad

What does it do in the wash cycle?

Look for a blown capacitor if the other components are all fine.

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you have a worn motor coupler
you can order a new one at sears
and its a ver y easy repair

Yes sir, a bad motor coupler could cause the machine not to spin. You did the right thing in checking out the lid switch and the pump first. It sounds as if the motor coupling is worn and may be slipping. I will attach a link to a video that may assist you. Hope this helps and best wishes.
http://www.youtube.com/watch?v=WLPGs2UMUJc

Sounds more like a transmission or a spin tube problem

Can you move the basket by hand...if so you need a basket drive. If not you have a bad clutch or gear case

You may either have a broken motor coupler (connects the motor to the transmission) or the clutch/brake assembly is slipping. To test the motor coupler start a cycle, if it fills and agitates, the coupler is ok.
You can check the clutch/brake by selecting the spin cycle, open the lid and press the lid switch down using a pen. When the motor starts check for either a very slow spin or give it a boost by pushing the inner drum clockwise and see if it picks up any speed. If it spins just a little, the clutch/ brake assembly is slipping and will need to be replaced.

transmissions defective

When this machine is not spinning, the water should still be able to drain, as the motor drives the pump on the same shaft as the coupler for the tranny. Set to the spin setting and depress the lid switch, if the water still does not drain, you may have something stuck in your pump, which would also lock the motor shaft and not allow it to spin or agitate. If the water does drain, check the motor coupler, which is located between the motor and transmission, if broken, the motor will run but there is no drive to the transmission. Hope this helps...