Toyota TUNDRA 2009 Manual page 257

Towing related term
Towing capacity
Tongue load
King pin weight
Trailer tongue load
l A recommended tongue load or king pin weight varies in accor-
dance with the types of trailers or towing as described below.
l In order to ensure the recommended values shown below, the
trailer must be loaded by referring to the following instructions.
1. Conventional Towing
The trailer cargo load should be distributed so that the tongue
load is 9 to 11% of the gross trailer weight, not exceeding the fol-
lowing.
(Tongue load /Gross trailer weight x 100 = 9 to 11%)
If the gross trailer weight is over 2000 lbs. (907 kg), it is neces-
sary to use a sway control device with sufficient capacity.
If the gross trailer weight is over 5000 lbs. (2268 kg), it is neces-
sary to use a weight distributing hitch with sufficient capacity.
If using a weight distributing hitch when towing, keep your vehi-
cle level with the ground.
The maximum allowable gross trailer weight.
Towing capacity is calculated considering base
vehicle with necessary vehicle equipment and
150 pound driver.
Additional optional equipment, passengers and
cargo in the vehicle will reduce the towing
capacity, gross trailer weight includes the
trailer, cargo and necessary equipment for
towing.
The load placed on the trailer hitch ball.
The load placed on the fifth wheel trailer hitch
mount.
2-5. Driving information
Meaning
2
259