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89PS911 89PS911 is offline
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Join Date: Nov 2011
Location: Portland OR
Posts: 127
Bilstein sport shock installation-shaft spinning when tightening lock nut

Hi All,

Installing Bilstein sports on my 1989 911 3.2. Rear shock is bolted to the control arm. When I attempt to tighten the lock nut at the top of the shock, once the nut reaches the blue plastic locking ring the nut begins to spin the shaft and will advance no further. There is not enough thread under the nut to grab the shaft and tighten the nut through the plastic lock. In any case, I am worried about damaging threads by grabbing them. I have tried this both with the full weight of the car on that shock with wheel installed and up on my scissor lift with the shock fully compressed using my floor jack under the control arm; so maximum thread exposed at the top in both cases.

This can't be this difficult by design. Please advise.

Thank you,
Jonathan
Old 03-15-2015, 10:09 AM
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