I think I've read that this tranny is the same one that has been used in previous Benz products when they used a 5 speed auto (i.e. previous generation E, M classes)? It might be a good idea to have it done at a good independent Benz shop. On second thought, doesn't the SRT8 use the same tranny? If so, a Jeep dealer probably could handle it. What about one with a Sprinter franchise and trained techs?
2008 Grand Cherokee Limited 2wd CRD-InMotion Stage 2 Tune, K&N Air Filter, Elephant Hose CCV Mod, Gutted Turbo Resonator, MBRP Pro Series Exhaust