goose23

Ok so ive changed my motor mounts trans and torque bushing to polys and u joints and it has a banging when it shifts and seems to shift kinda hard but if im reving around 3 or 4 grand or higher it wont bang just feels like its shiftn hard i had a superchips tune on it and i took it off and installed the stock program im just at a loss could it be my rearend going bad or trans? it feels like it could be slack if i let off the pedal and give it gas sometimes it feels like it slips or pulls the slack up and then bangs