I desided ont to replace the hitch and I could go back to the store and look at the built ones there but here is the question
When you install a Coupler rebuild Kit how far does one tighten the nut. How open should it be when the ball goes one.

I just got a new hitch installed behind the Corolla with a 2" ball. the Coupler is a 2" but when I tryed to hook up it did not go so I said what the heck and got the kit. Fulton Performance Products, Inc. from Mosinee, WI
below quote from assembly Instructions
We Men

" To install ball in Coupler socket and push locking lever to locking postition. Tighten lock nut as far as possible - it will be difficult or impossible to lift the locking lever. Now back off lock nut 1/2 turn, unlock safety lock and lift the locking lever.
Warning... at least 1-1/2 full threads of the locking bolt must be exposed beyond the lock nut after this adjucstment.
etc.... last it said to maintain a snug fit the ball in the coupling, it is nessary to at intervals, to slightly turn the lock nut as may be required to tighten. "
anyone wish to add to that??