Main Menu

Koni Strut Housing Ball Joint Attachment - Safety Concerns


Vehicle Information: Model: 911E & 911T; Year: 1969; Body Type: Coupe; Engine (type, size, modifications): 2.0 & 2.2; Total Mileage: 100K +;

I am planning on replacing my 1969 911E struts with Koni struts dated 10/70. As far as I can surmise, the early Koni struts used a bolt threaded into the bottom of the strut housing that pinches the ball joint and holds it in place via a curved notched on the ball joint stem(pinch-bolt strut) -- my struts. Supposedly for safety reasons, in 1972 (?) Porsche changed the Koni strut ball joint attachment to use a pin through the strut that is bolted on the opposite side and also changed the ball joint's stem to a V-notch (pin-type strut).I have read in various Porsche sites that the pinch-bolt strut is considered dangerous and should be swapped out for the newer pin-type struts. One reason might be that I think Porsche discontinued the bolt for the old strut/ball joint and therefore there are a lot of rusty bolts holding the strut to the ball joint which could easily break. I have two questions:1. What are your thoughts on the two different struts' safety concerns for street use 911s?2. Is there an OEM replacment bolt for the older pinch-bolt type strut? Part no.? Aftermarket?Thanks,Ron

You must log in to view answers associated with technical questions. Join PCA to participate in our community.
No votes yet