I am going to jump in this post, I have the exact same thing except 4.56 gears. 351w, 4r70w, Atlas, 4.56, 35" tires. I currently have a NP205 and it really is a pain on any bumpy/rocky trail because I am always in 1st gear. i get into 2nd and the kids heads are bouncing all around.
I am up...