Originally Posted by SamS
Yes, I suspect you are right about that.
One other thing I noticed with these newest pictures, is that the front (and rear?) brakes seems smaller than on that mule first spotted in Nov. '09.
I'm think both sets of wheels are 17". What do you guys think?
Yes they are smaller, as the OP said, this is likely to be a 4cyl diesel. The bigger brakes were on a 6cyl model, perhaps the like a 335.