3500 T1N series Sprinter, 2006 and earlier is 133 lb/ft. These are fairly small studs for the size of the vehicle. Later models, are, that I know of, the same.
For rear wheels, take a 2x8 and use a hole saw to drill staggered 7/8 inch holes in it. You set this on the ground vertical, slip the extension thru the best hole that lines up with the particular lug nut, and put the socket on and then you, can much more easily break the lugs loose. I bought a 2 ft harbor freight breaker bar to keep with extensions and 19 mm socket just for this purpose. Have another socket that fits the belt tensioner on the 5 cylinder, makes changing the belt a 10 minute job.
No one, but no one, ever tightens lugnuts on my cars, except for myself.
Be careful not to lose this split conical washers that go under the lugnuts. They are a Benz/Chrysler only item. The lug nuts are available thru Dorman as p/n 611-295.1 is one each in a bag. Stupid expensive, you can get a box of ten, same p/n without the point one on the end, for a lot less. Mine were all rusted so I changed every one of them.
Charles
2007 Winnebago View 523H on a 2006 Dodge (Daimler-Chrysler aka Mercedes) Sprinter 3500 chassis (T1N). Bought Sept 2015 with 18K miles on it, Prog Ind HW30C, Prog Dymanics PD4645, Chill Grille, PML/Yourcovers.com deep alum trans pan, AutoMeter 8558 trans temp gauge, Roadmaster sway bar, Fantastic Ultra Breeze hood, added OEM parabolic mirrors and RH aspherical mirror.