So while underneath the truck doing the exhaust, I noticed just how tweaked the front shackles are. They're both bent to the passenger side and I assume this is contributing to the front axle not being centered beneath the body. Guess we'll be replacing shackles when we do springs. Amazing how nicely the truck rides and steers with the old shocks, worn out bushings, gaps in the leafs, and tweaked shackles!
New exhaust. More quiet, less sleepy.