****Triple Axle Options Only on 16' Length. 6x21 Cylinder Required on Triple Axle (Option-CY06). Max G.V.W.R. 16,000 with 8k Axle Option and 16k+ Rated Coupler. Bumper Pull Tongue Length (4'10"), Gooseneck Length (9'2"). 8k Axle Will Raise Deck Height on This Model By 5"****