Reminds me of our first rig, a '94 F150 and '94 Aljo 21' TT. Dealer sold us a WD hitch with a shank that put the ball 14" from the pin. We really felt the push and pull from passing trucks. Especially box trucks. Then I found a very short welded Quality S WD hitch at a flea market and bought it. Much less push and pull from passing trucks. Then tried an even shorter weight bearing ball/shank. Best yet. I'm going to try the unnecessarily long shank on my Reese WD hitch with our new 32' TT. I foresee going down the same path. I wish the manufacturers would offer a short shank to begin with.