Nissan does have one and it is adjustable, however unlike the Toyota it uses a cylinder with a ball inside that rolls with the fore and the aft of the vehicle during braking, modulating the rear brake application. Since the rear is so heavy on the motorhome? chassis it could be considered fully loaded at all times, a decision could be made to remove it completely, this would give full pressure to the rear brakes.
Something worth considering.
I once owned a Nissan Lakeview built on the 720 chassis and those brakes were awesome!
Aaron from Colorado
