To those wondering about - How does the front end even flex at all, given the "beefiness" of the frame. Minion and I have a 2006 Slingshot with only 25,000 miles all stock on the drivetrain.
I deal with construction engineering as part of my daily work, so I don't claim to "know" the mechanics of it all but here is my idea:
The front end has multiple load dynamics going on.
1. The engine with its vibration and torquing going on, thus the vibration mounts to "minimize the effects" on the frame.
2. The road effect through the wheels into the front end suspension that is attached to the frame.
3. The whole steering mechanism, also attached to the frame.
All of the above are considered as dynamic live loads feeding into the frame structure, pushing it into in all sorts of directions all at the same time while we drive our beloved trucks down the road. Now think about the lowly GM engineer that has been told to calculate this and keep the fix as inexpensive (Cheap) as possible. Thus we end up with the less than adequate cross bracing that we have on the front and rear of our vehicles. (Side-note: We have Tech-day coming up this weekend in D/FW TX and after examining the undercarriage, my rears cross member is showing signs of overstressing and the front end feels a little sloppy when accelerating through a curve. (some of that - not all - is the front end of the frame flexing) . So I am putting in Mike's front and rear end fixes this weekend.
I strongly recommend any Brother & Sister Fanatics to check your bracing, especially if you have boosted your horsepower, and thus the torque of your power plants.
Better safe than sorry or worse hurt because something comes apart going down the road.
That's my 2-cents on the issue.
