mr. old style wrote:
My reese 20k has double jaws, and I confirmed by looking it up in owners manual that the ONLY correct way to hook it up, is to
1-have trailer lower than 5th wheel plate by 1/2 to one inch
2-have jaws CLOSED with safety catch open
3-back in under trailer forcing truck down, jaws open, and watch handle open and then close. with all the various safety measures in place.
just as described in asuperheat's response above. I found this in the manual supplied with the hitch.
I am confident, however disgusted with myself that this was operator error, especially seeing it was the second time it happened.
Triple checking will definately be common in the future!!!
Thanks for all the great replies and help with this issue