Hey,
Coincidentally, I've just brough my car back (also 2006 rt) for the same issue. I've put the challenger 6-speed manual mounts which are also used on police cars. These are supposedly much stronger than the stock ones. I've been looking for better mounts for a while as this is the third time I had to replace the mounts, and was finally fed up with the quality of the original part so I've been researching those on this forums and elswhere as well, and general consensus seems to be those challenger 6-speed manual mount are the way to go. The part number is 5180406AE and can be found e.g. here:
http://www.highhorseperformance.com/Mopar_OEM_5_7L_6_Speed_Challenger_Motor_Mount_p/5180406ae.htm
Coincidentally, I've just brough my car back (also 2006 rt) for the same issue. I've put the challenger 6-speed manual mounts which are also used on police cars. These are supposedly much stronger than the stock ones. I've been looking for better mounts for a while as this is the third time I had to replace the mounts, and was finally fed up with the quality of the original part so I've been researching those on this forums and elswhere as well, and general consensus seems to be those challenger 6-speed manual mount are the way to go. The part number is 5180406AE and can be found e.g. here:
http://www.highhorseperformance.com/Mopar_OEM_5_7L_6_Speed_Challenger_Motor_Mount_p/5180406ae.htm