Can I pull this, or upgrade needed. Help please.

Yeah, I GOT ONE:B.....385HP, 850ftlb of TQ, 14,000# GVWR and 37,000# GCWR....yeah, you won't be over anything with your KZ.....Let us know how it tows for you....I've got a little over 4800 miles on mine and love it....haven't towed with it yet...got my hitch in about 3 weeks ago and got the 5er matched up with the hitch, just waiting for next chance to tow it....believe you'll love the truck:)