Dom99GT

I recently purchased a 1999 Mustang GT 5 Speed with 96,000 miles on it, the car is in immaculate condition with no rust, the only issue is when you first start the car there is a metal whirling sound the sound lessens as the car warms up but is still noticeable, its not a horrible sound but it sounds like the whirling of metal, when i push the clutch in i can hear a distinct sound as if spinning metal is rubbing on something, again it is not a horrible noise but it is noticeable, i was told the car may need a new throw out bearing, i plan on putting a new clutch and throw out bearing in about a week, i was wondering if it would be ok to drive the car as long as im not shifting hard or beating on the car, i had a friend tell me not to drive it because i could damage the input shaft which worried me, i would just like to know if it would be ok if i drive the car normally and baby it until next weekend or at the most 2 weeks from now when i put the new clutch and throw out bearing in, Im sorry if i posted this in the wrong area it is my first post as i am new here, Thank you.

Dom99GT

also the clutch pedal shakes in first and second but not the rest of the gears

Camster

I'm inclined to agree with your friend.It might cause damage,it might not,but avoiding that possibility would be a good thing.
For all of the effort to pull a tranny,I'd be replacing every part of the clutch.If you have a vibration,it might be worthwhile to have the flywheel machined or replaced.
Replace the pilot bearing too.That can also give you noise when the clutch is depressed.