so my old mount was collapsed so I swapped it out for an oem one and now whenever I let off the gas after accel I get a quick grinding noise is it necessary to change the motor mounts also when doing the tranny?is it also possible that since it lifted my tranny just probably a half inch or so that it could be showing me signs of a bad u joint in the rear?

 

How 'bout some jeep details. Year, lift height, addl mods.... something that may help.