Team Ford Yes
Have 4.10s now for a couple of days, so can't comment on the gas mileage, although considering all the posts I've seen, and the objective numbers for RPM, a mile or so per gallon sounds reasonable. About the shops for doing work to your MM, I would highly recommend a road trip to Team Ford in Marietta, GA for your serious work. The guys there are fluent in Marauder. Well worth your time, and you'll probably meet other owners while you're here. Watch the Southern Marauder thread for info for our next breakfast (usually 3rd Saturday of each month) and come on down. I'm a newcomer, but was given a friendly welcome and learned a lot from "seasoned" owners. Welcome to our site.:beer: