I have a stock 10 bolt rs rear and t-5 with a 350 tbi. Recently, when i get off the line, there's a double clunk noise. i also fell it through second gear. I think i might have felt from 2-3, and in reverse when i go fast. This is the rear right? I am getting a new one on the 21st and would like to be sure before the rear is down that that's the problem.

Thanks
Brandon

 

check u-joints or trans mount.