hey tarsho you say you have d rings . do they have a mounting flange or would they bolt directly. some of the d rings i have seen have a kind of heavy d ring with a flange that would bolt or weld to the bottom or side of a frame. 11/2 times the weight of your truck isnt a big pull when it comes to 4x4ing.
you may look at reinforcing the pull point on the frame also.
i have seen in my job ,trucks in the oilfields that got stuck and had a good 4x4 hookup pulled right out of the frame.
i have also seen a truck that got really stuck and they used a 4 wheel drive tractor pull it out. the pull point did not pull out on that one but the front of the truck was over 8 inches longer on onside compared to the other. what a mess.