[DeTomaso] Techno question: Koni shock bump stops

[Frank Lisi]

Hi Chuck,

What a coincidence, I just started attempting to resolve my Konis'  deteriorated crumbling bump stops.  I found the replacement part on Amazon, (of all places) sold by a third party seller called Performance Guarantee (I believe they only sell through Amazon I could not find their direct web site)

The part number is Koni 71 34 42 000 0, two bump stops for $25.63. That said I am not sure this is the exact replacement part as my existing stops are deteriorated and any number indications are long gone.  Once I receive the parts I will let you know.  

BTW the thought of needing to disassemble and reassemble all four shocks does not excite me.  I am willing to send them to a service to have the replacements installed, however I have not begun that search.   

The Koni web site is https://www.koni-na.com/en-US/NorthAmerica/Products/Accessories/BumpRubbers/

Let me know what you find.

All the Best

Frank Lisi



On 6/25/21, 12:48 PM, "Charles Engles" <cengles at cox.net> wrote:

       Dear Forum,


                 During a long sporty drive this week there was a new
       squeaky/squealy noise from the right corner only during  left turns at
       more than 35 mph or so.  I thought that the high positive caster had
       resulted in the tire contacting the fender lip.  I had solved that
       problem over twenty years ago and I did not understand why it would
       return.


                  Inspection showed no obvious fender contact on the tire nor
       of tire contact on the fender.  I removed the wheels and did not see
       evidence for a leaky, failing Koni shock.


                  I did find that the bump stops, both right and left, look
       they are well into crumbling deterioration.  I think that the smaller
       effective bump stop permitted more suspension travel which did allow
       some tire-fender lip contact for brief periods.


                 It obviously happens, but I have not heard of failing bump
       stops.  I presume that this mundane failing part will require shock
       removal to replace the bump stop?    Has anyone else been down this
       proverbial road?


                                Warmest regards, Chuck Engles