haha, thanks guys... When I bought the truck, the lift was already installed (4.5" Superlift) and the springs were so new they still had the SKU stickers on them and stuff, so I left them alone while I dealt with the millions of other more obvious issues the truck had at the time. It had some crazy wiring and actually caught on fire briefly, for example... So back to the topic, I don't think the center pin would be broken, seeing as these springs are so new, but I think checking if my U-bolts came loose might be a good start. Maybe they were never properly torqued to begin with, or needed to be re-torqued once the springs broke in. I like easy fixes!
This truck has always been a side project that I've neglected, until now. Anyways, now that I'm putting some miles on it, I'm starting to see some drivability issues arise such as this. Thank you guys again for the help, we'll see if it was something that simple!