Ok. 90 740 turbo. Solid rear axle AFAIK.

I need new rear shocks. About two years ago, I replaced my front shocks with Boge turbo gas (later found out they were recommended for NON turbo cars... lame name for a shock not meant for a turbo car).
The rear shocks still had something left to them at the time.
I now see that even so little weight as putting a microwave in my trunk is enough to push my car to the bottom of its rear ride-height. I began noticing it with people in the back, and noticed it now with just a microwave that weighs like 40 lbs.

So, I'll buy from FCP groton I think.
Question is, which to get? anyone try any of the following before?:
Sachs (OEM), KYB GR2 and Gas-A-Just, and Bilstein economy and HD.
The others are all about 40-50 each, but the Bilsteins are about 85.
I wouldn't mind it if there's a convincing reason to use them. The digressive valving I read about on the strut inserts sounded great, but I couldn't afford the high price tags.
Is there a point? I just drive pretty normally, but sometimes a little wild. No racing, except off a stoplight sometimes. And I live down a horrid dirt road.
Not interested in modifying anything, or lowering the car in any way. May do a rear diff(read: axle) swap for mileage.


Thanks everyone,
Will
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1990 740 Turbo, on its way to stock specs, maybe beyond