Rotus group?

[pethier]

23 hours ago, ptegler said:

less!     Only two lower shock bolts.    :-)    ptegler  

On the assumption that you are addressing me:

 

On the Europa, the upper ends of the two rear coilover units are bolted to lightweight metal piece which is open on the bottom.  This piece runs transversely over the top of the 16-gauge chassis frame.  There are two vertical tabs on this piece that fit on the outside vertical portions of the frame.  No part of the piece wraps around the bottom of the frame.  On each side there are two 5/16" bolts that secure the tab to the frame.  More than half of the sprung weight of the car hangs on these four bolts.

 

Shock (damper) bolts on a Europa are 1/2". 

The area of one of these damper bolts is about 0.196 square inches. 

The total area of TWO 5/16" bolts is about .0.153 square inches.

 

Even before you consider clamping force, the little bolts that hold that piece to the frame are clearly the weak link in this chain.

 

Edited February 22 by pethier