Quote:
Originally Posted by Bill Verburg
another factor w/ the OPs shocks is they are likely based on a B8 so already shorter than the usual B6 used in 911 front
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It is true, that some applications of B8s have shorter strut/shock bodies, not only for 964 and up 911s, but many other cars from different brands.
However, it is not the case for 911s up to 1989 that originally came with torsion bars. I wish it was!
The reason for the above is simple. Consider what would happen if you could actually purchase a B8 strut insert with a shorter body that allowed greater bump travel. The strut housing (which is not changed when you change "shocks") would smack right into the top mount before the insert ran out of travel.
The only length difference in any of the Bilstein offerings for the pre-964 911 is the REAR sport shocks (the yellow ones) have a shock shaft that is slightly shorter. The only thing this does is slightly reduce the overall travel of the shock and limits DROOP travel to some extent.