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172
4-1. Before driving
TUNDRA_U_17MY_OM34594U
The rear bumper of your vehicle is
equipped with a hole to install a
trailer ball. If you have any ques-
tions, contact your Toyota dealer.
The gross trailer weight (trailer
weight plus cargo weight) when
towing with the bumper must never
exceed the TWR (ï‚®P. 162) or
5000 lb. (2268 kg) whichever is
lower.
Use the correct trailer ball for your application.
Trailer ball load rating
Matches or exceeds the gross
trailer weight rating of the trailer.
Ball diameter
Matches the size of the trailer cou-
pler. Most couplers are stamped
with the required trailer ball size.
Shank length
Protrudes beyond the bottom of the lock washer and nut by at least 2
threads.
Shank diameter
Matches the ball mount hole diameter size.
Bumper towing (vehicles with steel bumper only)
Selecting trailer ball
1
2
Trailer class
IV II and III I
Typical trailer ball size 2 5/16 in. 2 in. 1 7/8 in.
3
4
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