Mysterious front end shake at speed

[Bob In Ct]

Since most of our cars do not use "rag joints" in the steering column the problem is more pronounced.

Most production cars, both past and present, come with "rag joints". Go out in the garage and take a look.

Bob

[Blas]

drthomas999,
There was a known problem with caliper bolts on a series of Superformance cars a while back in 2009 I believe..
Cars in the range of chassis #2600-#2975 is where the problem occurred. "Inadequate thread locking compound was installed by the factory."
The solution was to remove the mounting bolts inspect and re-apply Loctite #271 on the bolts and then reinstall.
There was a thread or two here on CC about it, just like your experience as I recall.
Contact me if you have questions...my contact info is below.