UPDATED JANUARY 2025
One of the innovative features of the Quik Rack Mach2 is the captive safety pin at the hitch (shown with the red knob in the photo below).
The captive safety pin serves as a fail safe if the rack were to become loosened and start slipping out of the receiver. The rack will only become loose if it isn’t tightened properly with the blue lever and periodically checked.
The captive safety pin was designed because, for whatever reason, there is no standard when it comes to hitch receivers and their hitch pin holes. We cannot rely on you being able to use a standard hitch pin so the captive safety pin solves this issue for most vehicles.
The captive safety pin does NOT need to reach or sit in the hole in your receiver; it just needs to sit behind the flange (lip) of the receiver. If it does reach and sit in the hole, that’s okay, but don’t worry if it doesn’t.
The captive safety pin can be removed entirely (though we don’t recommend it) and it can easily be switched to the opposite side. This is necessary with some vehicles due to space restraints and electrical connections in the area of the receiver. Once removed, you can use a standard hitch pin bolt with cotter pin or lock.
However, it is not possible to use a standard hitch pin with the 1.25″ hitch or the 1.25″ with the 2″ adapter installed. The reason is because there is no hole going through the adapter. In other words, you can only do this with the 2″ hitch model.
Also, the hole in the hitch insert will not align with the hole in the receiver on all vehicles. Please see the dimensions FAQ to measure the location of the hole and compare it to that of the hole in your receiver.
