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187
4-1. Before driving
4
Driving
Trailer ball load rating
Matches or exceeds the gross
trailer weight rating of the trailer.
Shank length
Protrudes beyond the bottom of the
lock washer and nut by at least 2
threads.
Shank diameter
Matches the ball mount hole diame-
ter size.
Ball diameter
Matches the size of the trailer cou-
pler. Most couplers are stamped
with the required trailer ball size.
Weight carrying ball position:
43.3 in. (1100 mm)
Hitch receiver pin hole posi-
tion: 38.1 in. (969 mm)
â– Matching trailer ball height to
trailer coupler height
No matter which class of tow hitch
applies, for a more safe trailer
hookup, the trailer ball setup must
be the proper height for the coupler
on the trailer.
Coupler
Trailer ball
Trailer class
Typical trailer
ball size
IV 2 5/16 in.
II and III 2 in.
I 1 7/8 in.
A
B
C
D
Positions for towing hitch
receiver and hitch ball
A
B
A
B
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