97 Clank HELP PLEASE !!!

[eaglebreath]

I have a 97 Lesabre.......I hear and feel some type of "clank" noise coming from my front wheel area. It happens mostly when I take off from a stop.
I feel and hear some type of clank (one time only) and it occurs about a half second after I accelerate. I also feel and hear the same noise when I
hit the brakes. it doesn't happen every time ...........but I will say it happens
80% of the time. I lifted the front end and ran the car through the gears
and there is a noise coming from the rotor slamming against studs when I shift.........could this be the noise I am hearing? It also feels like the caliper is sticking and letting loose making a clank.but this only happens when I am driving, It won't do it when it is on stands . Can a
Caliper stick like that?? I am up for any suggestions.......this noise is driving me nuts!!!!!

[maxwedge]

Pull the wheel and look, from our desks to analyze this accurately is impossible, loose caliper or bracket is just one possibility, could be the lower arm also.

[eaglebreath]

Is it normal for the rotor to have 1/8 to 3/16 of clearance around the studs??

[maxwedge]

With the wheel off yes, of course.