Autohaulersupply (hammerlock) coupler install - help no longer needed


Tremor Buff
Mar 13, 2021
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United States
Current Ride
F250 Tremor 7.3

Anyone know how these get installed? Specifically the "spacer" pieces seen in the bottom of the picture that must lock the pin that holds the 2 halves together ...
Last edited:
FYI the picture isn’t loading for me. Link goes to a “Page Not Found”.
Had to c-clamp the c-clamp, but got them on.

Thank you @Datasponge for this tip! I bought the autohaulersupply hammerlocks and a 6" C-clamp (my 5" wasn't going to cut it), but was about to toss in the towel until I searched on here for recommendations. Clamping the clamp was the trick. Oh, and realigning every few turns (before I realized this I was literally bending the handle of my clamp fighting a bad angle where the pin and clamp were no longer true.

The first side was such a s@# show that I chipped up the paint on safety chain opening. I'm sure it wouldn't look pretty for very long no matter what, but still it bothers me on principle that I chipped it up due to my stupidity. Once I figured out the process the second side went on without issue and in under two minutes. For certain these things are not coming off until I replace the hitch/truck.

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