Anyone have a pic of ......

It is to my understanding that 3/4T hubs are needed to tuck semi's on a squarebody. And I plan on bagging my '86 on 24" Alcoa's. I keep reading about guys making the the control arms wider after swapping to 3/4T hubs because it pulls the wheels in too much, about 3.5 in. on each side. Are they lengthening the control arms because the wheels look funny too sucked in or because the wheels are pulled in so much that the inner side of the wheels rub on something? Does anyone have a pic of a square with semi's, 3/4T hubs, and stock control arms?

Also, I already got an '85 model C&C rear which I am going to have rebuilt before installing and I wanted to swap gears while everything was apart. The C&C has 4.10's (same as my stock rear) and I wanted to swap to a numerically lower gear to lower my revs on the highway since I am keeping my TH400 trans. The numerically lowest gear I can find for the 10.5" 14 bolt is a 3.73 from LMC truck. Does anyone make anything numerically lower and where can I buy it?