I have a 1998 camaro w T56 and have done Poly Motor mounts, poly Torque arm bushing, and Stock (rubber) replacement Trans mount in order to reduce the transmission movement which helped significantly, but under medium ish throttle, my shifter will still excessively move to the right and back after I let off. Stock car with mgw shifter, and it visibly is moving about an inch to the right. Everyone recommends the rubber trans mount with the poly motor mounts, but It is moving enough that it probably split the rubber. Anyone with the same setup having this issue?

Edit: The shifter itself is bolted down correctly and not moving, it is the transmission itself.