Originally Posted by woo10-210
I'm going to get some flak for this but here goes, most people using hitch tighteners with a WDH are mounting them upside down. This stretches the bolts every time the hitch bounces up and down which loosens the nuts. The shank needs to be pulled upwards, not down.
When the WDH spring bars are 'loaded', the shank pivots vertically on the hitch pin, lifting the rear of the shank and forcing the forward portion of the shank downward. The majority of the tongue weight is applied to the hitch pin but the remainder of the load is applied to the nose of the shank where it contacts the floor of the hitch tube forward of the hitch pin. That's how the load is able to be transferred to the front of the TV.
I just finished a 1000 mile trip with mine installed the "wrong" way, and it did loosen slightly (not enough to cause any real problem).
I flipped it over this morning and am heading out for another 1200 miles tomorrow, so we will see how it does.
BTW, from your picture, it looks like we are using the same tightener.