Selecting Trailer Ball; Positions For Towing Hitch Receiver And Hitch Ball - Lexus RX 450H Owner's Manual

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4-1. Before driving

Selecting trailer ball

Use the correct trailer ball for your application.
Trailer ball load rating
1
Matches or exceeds the gross trailer
weight rating of the trailer.
Ball diameter
2
Matches the size of the trailer coupler.
Most couplers are stamped with the
required trailer ball size.
Trailer class
II and III
Shank length
3
Protrudes beyond the bottom of the lock washer and nut by at least 2 threads.
Shank diameter
4
Matches the ball mount hole diameter size.

Positions for towing hitch receiver and hitch ball

Weight carrying ball position:
1
44.96 in. (1142 mm)
Hitch receiver pin hole position:
2
35.94 in. (913 mm)
RX450h_U_OM0E023U
IV
I
Typical trailer ball size
2 5/16 in.
2 in.
1 7/8 in.