U-Haul 3/4" & 1" Shank Hitch Ball Installation Instructions
Channel: Stephen Rivett
Date: 2020-01-16

How to install a 1" shank ball on a draw bar hitch. 

The torque on a 1" shank from U-Haul is 215 ft/lbs should you not have any more nylon washers.  I have read that U-Haul calls for 125 ft/lbs for 3/4" shank balls but I haven't seen it written anywhere formally.

Don't bother with getting a hitch wrench locally, U-Haul used to sell a 1-1/4" x 1-5/8" wrench but it is no longer available...other wrenches on the market are a 1-1/8" x 1-1/2" so they are not usable.  You will want a wrench that is 24" long to do this job.  A pipe wrench and big adjustable is probably the cheapest solution.  

-24" pipe wrench:  Various, https://amzn.to/3lzyBVE
-Adjustable Wrench:  Channellock 8" Extra Wide 8WCB, https://amzn.to/3lKxd2z
-1/8" cotter pin
-U-Haul 5442 nylon washer

U-Haul Instructions:  https://archive.org/details/uhaul1inchshankhitchballinstallationinstructions3971522007ocr2pages

uhaul diy trailer tighten receiver

As an Amazon Associate I earn from qualifying purchases.