Broken Jag rear - WARNING!

[Monster]

Tom,

I just came across your post. I had the same thing happen to me coming home from "Snakes to the Lake" Cobra run this year in late Sept. We were driving "spiritedly" through the mountains when I cam around a turn and a pickup truck decided that he would pull in between me and the car in front. I was going about 50mph and had to down shift 3rd to 2nd, when I did my RT control arm broke on the inside weld (yes, it was on the weld and we noted that it appear to be possibly an issue of poor penetration. The weld was not ground and appeard to be original. We had not hit anything and suspension travel is correct as well). Luckly we were slowing and I was able to stop in a matter of 40-60ft and some how with no further damage. I was able to get the car on a fellow Cobra owners trailer (which I'm sure you know is a task with a broken suspension) get it over to another Cobra owners house that was in the area and make an inner sleeve which we cross drilled and button welded then seam welded into place. I was able to then drive it home that same day. I am not driving it much currently until I can re-build both arms. I have considered both the sleeve approach and/or also adding horizontal braces to the arms. I believe that the issue is the torque stress applied to the arms since they have to absorb all of the transferd power. I am considering adding an upper arm from the top of the hub carrier to the frame which would compensate for the toque applied to the lower arm and reduce the strees placed on it, but I will need to work out the geometry.

good luck keep us posted,

Mike "monster"