help diagnosing a starter

[Mtbdavid2@aol.com]

Hi,
  I have a 68 2000 roadster with about a 2 year old gear reduction  starter.  
I bought it new, not rebuilt.  I have put in a new  alternator in the past 
few months and I just last weekend put in a brand new  battery.  The starter 
just clicks for quite some time before I can get it  to actually turn over the 
motor and start the car.  Is it possible that the  starter has gone bad 
already? 
 Are there tests I can run either with the  starter in or out of the car?
 
Thanks,
David