You might even be able to run as little as 40-50 lbs in the rear. Wieght what your rear wieghs empty, pressure up tires accordingly.
I've run many tread designs on rears of trucks, ride quality is based on correct psi for load.
I currently have Cooper ATP3, son just put a second set on his now lifted GM 1500. I've had very few issues running Cooper's since late 80s. A popular M brand.....only XDE M+S in a 19.5 on dump truck are worth the $$$, first born, arm, leg and ALL the money in my pocket!
Marty