Your on therite track,it may beon the way out. First try the adjustment rod(to the fork that holds the bearing)sounds may be due to slopthere. #2 look for bad mounts ie;crossmember@trans,motor mounts,clutch return spring(ess play),trans to eng bolts (loose). #3 the clutch mount bushings(plastic)will wear outor the felt pads may be gone,it in the eng bay attached to the driver side frame "the pivot point"can you move or shake it with your hand? #4 yank the trans & remember to pack the bearing next time
(humor).