Yes, almost all pin wt will go on the rear axle. Easy thing to do, is get separate axle wts of your truck ready to camp, full fuel, people, and gear. How much does rear axle weigh? Let's say 3,200, plus 200 more for hitch 3400. Look at your RAWR/tire rating (6-6.5K)? Subtract the 3,400 from your axle/tire rating, and this is the amount you can still put on rear axle.
Jerry