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Walt Fricke Walt Fricke is offline
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Join Date: May 2004
Location: Boulder, Colorado
Posts: 6,552
I think some are confused here. The anti-dive added to the 930s was done by spacing the front A arm bushing system down, and by raising the rear cross member (and thus the rear A arm bushing system) up. Spacing down is easy, but to raise the cross member up (and thus the A arm bushing) you have to cut out a small section of the tub and weld in the "nut" part higher up. The factory manual shows this. The top of this "nut" actually protrudes into the trunk, as it is welded both to the lower piece of some unibody sheet metal, but penetrates and is welded to a piece above it. Makes sense, as those two 12mm bolts take up a lot of pretty heavy suspension forces.

The result of lowering and raising is to incline the axis of the A arm. The only purpose of this was to introduce anti-dive. And the spindles on the 930 A arms are, as far as I know, at the same height as those of the regular 911s. Spindles were only raised on the RS to lower the ride height. The RS came with Bilstein struts, and the spindles are fairly easy to raise on those. They are very very difficult to raise on Boge or Koni struts, as you have to section the tubing above and below the spindle on those struts.
Old 12-29-2016, 04:15 PM
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