We have converted units for ourselves, other tour operators, and the U.S.Army. The repowered units are much faster than the original drives with land speeds in excess of 45 mph. Water speed was also improved to 13 knots up from 7-8 original. Some things are truly misrepresented by others as to the highway manners of the larc. With no active suspension the larc relies on the balloon tires for ride.
Some people are under the misbelief that the larc bounces uncontrollably while on the highway.
We have operated our larc for 2 years and can tell you without a doubt this is simply not the case. Not even at 45 mph. It is just a scare tactic that some try to use to sell their product and point you away from the serious problems the Dukw and stalwart have. The larc cannot compete with the new Hydra-Terra. Hydra-Terra has much more free board, a full suspension, is not overwide, can be driven from the factory right to your door at expressway speeds, carries 49 people, and is brand new.