Found this in a site search:

"KYBs have a fair amount of compression dampening, they are that sort of shock, but Boge shocks are far softer on compression than many other brand shocks, but this is not really a bad thing.
Boge shocks have more rebound dampening that many other shocks, which gives them a totally different feel than many other shocks, it all depends on what you like though, KYBs are not know for having very good rebound dampening though.

Me, I like a shock that is softer on the compression stroke with a more controlled rebound, I find they suit harder springs well.
Likewise I find them easier on suspension parts in general, and give a much nicer ride, and just because a shock feels hard/firm does not mean it gives the best ride, even if your after sports handling.

If you want that sort of hard ride, go for Bilsten shocks, they are quite stiff both ways, with the touring class being fairly firm, and the sports ones being very firm."

That seems to address what it seemed to me might be happening--failing dampening on the rebound, but still firm on compression. And extra wear on suspension. Could you address that from your OL/KYB experience (BTW, the KYBs are are the gas ajust, not GR-2.

Thanks. That's the info I needed. The track rod bushings were shot and the tire people gleefully pointed to that as the cause of the wear/wail/vibration. I too think it's a bad tire--Bridgestone Turanza LST. I put them on originally because of reviews, handling, etc.. The different rubber layers utilized would be more prone to separation. I originally went in asking them to check if belt separation, but they just said no. I pursued it with call to Bridgestone, and we conferenced with tire shop manager. I went back in and that's when they spotted bad track rod bushings. I wasn't in a very good position to argue at that time. I put on my 19 year old spare and it ran much better (fingers crossed during the ride). How do you like the KYBs? As good as Boge/Sachs? What kind of life do you get from them? With the OL, how do you detect when shocks no longer at prime?
Thanks again.

No, he means KGB. Made with Polonium isotope, they will kill you if you say anything bad about Putin.

Rear tires and KYB. Don't know where KGB came from, except I was typing on an iPhone with no reading glasses. Might have "self-corrected".
I've been driving 245s for 25+ years and very familiar w/ tire balance issues, normal weak shock symptoms and bushing problems. It's the effect of the overload springs that I'm wondering about. They are so stiff when car is unloaded that I can't see them spending any time bouncing up and down (with super stiff springs w/ no shocks, car will hop/skip, not bounce). The track rod bushings were shot and replaced, and I wondered whether this also was accelerated by the springs, failing shocks. My other 240s have Bilsteins and Boge turbos, but w/ OEM springs. High quality shocks such as Bilsteins have valving which will absorb/dampen better than lower quality. At 40K, wonder if the KYBs now just can't keep up. Has anyone used the overloads and had suspension issues? How durable are the KYBs for nonsmooth roads (how many miles/years do they last)?