Terminology & Abbreviations; Tow Vehicle And Trailer Compatibility - MDC MOD BOX 2021 Owner's Manual

Terminology & Abbreviations
Ball Weight: The downward load exerted on the tow point of the vehicle by the trailer.
GCM: (Gross Combination Mass): This is the total allowable combined mass of tow vehicle and trailer as
determined by the tow vehicle manufacturer.
Camber: Camber angle is the measure in degrees of the difference between the wheel's vertical alignment
perpendicular to the surface. If a wheel is perfectly perpendicular to the surface, its camber would be 0 degrees.
Camber is described as negative when the top of the tyre begins to tilt inward towards the chassis rail.
Toe In/out: Negative toe, or toe out, is the front of the wheel pointing away from the centreline of the vehicle.
Positive toe, or toe in, is the front of the wheel pointing towards the centreline of the vehicle.
Toe can be measured in linear units, at the front or rear of the tyre, or as an angular deflection. In the case of MDC
products, the "toe in" is measured in millimetres at the front of the tyre from the chassis rail.

Tow vehicle and Trailer Compatibility

Your tow vehicle manufacturer has applied a maximum towing capacity to the vehicle which is the Aggregate Trailer
Mass (ATM) and a maximum Gross Combination Mass (GCM). These specifications MUST NOT be exceeded. It is
your responsibility to know, understand and follow these specifications. Vehicle manufacturers may also specify or
recommend "Weight Distribution Bars" when towing under certain conditions. You MUST ensure this is
compatible. with the vehicle and trailer combination.
DANGER – Exceeding manufacturer weight and combination limits can result
in loss of control leading to death or serious injury. Your tow vehicle and hitch
must be rated for the Gross Vehicle Weight of the trailer.
DANGER
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