so I did the PML and was trying to crank the tbars...I unboltes the lock nut on top and started to tighten the bolt liek the directions said...it was fairly easy after much WD40 use but stil a little bit resistance (first of all is that right?) and then tightened the nut back down....repeated for the other side then dropped the truck and moved it around...at first i did not record a change in height but there was a visible difference I thought...ok so I went back and did this again and recorded about an inch difference, and it looked about level to me, or where it should be...seems to be sagging again...this is normal too right? but is it supposed to be really easy to crank the tbars? i didnt see them move or anyhting and the bolt just turned like that? want to make sure I did it right.