hey guys i was wondering what the difference between using a stereo track and using mono would be if there are parts that your going to pan all the way to the left or right
If you're asking what the difference is assuming the recording setup were identical, and it's just a choice between actually recording to two mono tracks or a single stereo track, the only real differences are what point in the processes you set the panning, and what you can do to the individual tracks after their recored.
For the mono tracks, you set the panning for each track in mixing. For the stereo track, there is no panning to set; that's automatically encoded when you record one source to the left side and the other to the right.
And once you have recorded to a stereo track, you are suck with that hard panning no matter what (unless you break the stereo track back into two mono tracks.) Also, depending upon your make of DAW software, what you can or cannot do to each individual side of a stereo track in terms of automation, EQ, etc. can vary; some will only automate volume or EQ to the whole stereo track, for example, whereas others will let you set up separate automation paths for each channel in a stereo track.
As a matter of just keeping things straight and leaving the best options and least work open, though, in general, stereo tracks are only used to capture an actual stereophonic image, not just as a single package for two isolated tracks:
Do you have two separate guitar tracks that you want to hard pan because it sounds "k3wl"? Use two mono tracks.
Do you want to capture a stereo image from a stereo pair mic setup, but be able to adjust the "width" and position of that stereo image in your overall pan space? Use two mono tracks so you can manually adjust the panning.
Do you want to capture an actual natural stereo image from a stereo microphone pair (however they me be set up), or - as Jay said - record stereo outs from a stereo electronic instrument such as a stereo keyboard or a stereo reverb? Use a stereo track to record to.
G.