Transmission Slipping at 2500RPM

[redfiress08]

Hey guys I have not gotten on my car in a long time. We'll I let my brother and my cousin try my T/A today and he noticed that at 2500rpm"s it slips in 2nd and 3rd a little bit not alot like just like maybe a 1/4 a second and then catches right back up. But if you drive it normal and got to 3000rpm's it does not slip at all. So what could be the problem? I really would like to get this fixed....

[formula1804]

Is it a manual or auto trans? If its an auto you need to get it in the shop now before it shreds itself. If its a manual it could be the clutch or the throwout bearing.