Okay, replying to my own question after some input locally. Had a service call for it yesterday and the fellow told me that the very likely problem is that the device that changes the transmission position/function has a known design problem that creates problems after some period of use. Says the device is essentially a flat bearing of sorts with steel bearing elements that roll on an ALUMINUM way to actuate the transmission. Predictably, the ways become worn/irregular/rough, so the tub can spin with a full water load instead of agitate or maybe even do some of both. Sometimes the trans actuates ok, sometimes not and that explains the intermittent nature.

Anyway it doesn't appear to be feasible to just replace the transmission due to cost and the fact that a new one would last only 4-5 years too. I may take a look to see if I can gain access to the aluminum way. If so (and I doubt it), I could resurface it on the Bridgeport and maybe shim it back to position. I'm sure a very low likelihood of that being possible.

If anyone has any input regarding this explanation and/or the possibility of being able to access the aluminum way that seems to be the problem, please comment. Thanks!

Thanks for the informative postings. I am not aware of the problem you were told about, but GE is very close with their technical data and those outside of the GE family have very little access to their internal thinking.

It is difficult for us to judge your ability to make a repair like this, but given your background and demonstrated knowledge, you should be able to make the repair. Of course you run the risk that a transmission replacement will not solve the problem. but with your symptoms and prior diagnosis and the fact that the GE transmission is essentially self contained I think there is a good possibility that a new transmission will fix it.

Here is a service manual for a machine like yours. Look through it and then decide if you want to go ahead.

http://appliancejunk.com/ge/washer/31-10008.pdf

Good luck, hope it works out for you.

Well, thanks. We look forward to hearing how it worked out for you.

Yeah, I'm now hoping that the transmission is still covered. Can't find the original manuals, but will look it up on GE's website. Think the transmission may be covered for at least 5 years and now know that the washer is closer to 4 years old than it is to 5. Think whatever warranty might be left will be parts only, though, and hope they'll send the part itself to me without having to use their service person. Think the labor alone might drive the price beyond what I'm willing to pay for only 4 more years of likely service. Watched a few loads this weekend with the front cover off and predictably, the problem didn't surface. Still hoping to confirm the behavior before ordering a new transmission (even if under warranty).

Well, my wife and I gave up and bought a new machine. We had a similar issue to your problem and we just called GE about having a technician come out.

It would be $99 just to have someone come out and give an estimate. I checked my manual and our transmission on our 9 year old Profile was cover up to 10 years but you're right in that the warranty only cover parts. Oh, that $99 fee would then be applied to any labor costs and if you choose not to fix your machine, GE said they'd give a $20 to $100 rebate towards a new machine. (usually $20 they said)

We decided it wasn't worth the cost and hassle to fix the old machine and took advantage of Columbus Day sales. Loved my old Profile but it was time to move on.

Good luck in whatever you decide.

.m.