Nivomats should be the word you're looking for. Negative, I don't have those.
On shocks without any compressed gas (not even sure those exist anymore), they wouldn't alter the ride height. But the compressed gas in most modern shocks actually will increase your ride height. As it leaks out, the gas acts as less of a spring. Just think of the way new shocks expand if you make the mistake of cutting their straps before installing them.
I measured my Honda when I put 4 new struts in it, and the rear gained about 1 inch in the rear wheel well vs the ground. Putting the fronts in gained about 1/2 inch in the front. Same went for the volvo's rear.
I need to do the front struts on this 740, but I always hate starting that job. I don't think the 740s really have TABs in the same way that 240s do. There are some bushings, but they mount into the body near the rear jack points.
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