Thank you all for the greetings, its nice to feel welcome.
Swanny, no... I haven't had any "major" issues as of yet. (Knock on wood). I actually purchased this vehicle from a fella who had been a member on this site though. He was a solid guy, and was upfront with me on the sale. He had had some engine work completed in the two years he owned it. I've had all the fluids changed at a dealership since I don't know the history on that, and did have to have a "valve body" replaced due to a code P0876. (I searched the code on this site to help decipher the issue.). I've enjoyed the vehicle so far. When you step on the gas, I can feel the power; it brings a grin. haha.
Thank you for the links to aftermarket sites. I have looked at a couple of those already, and will check out the rest. My jeep is stock, and I'm looking to add a body lift, as well as new wheels and tires. The Overland has 18" wheels, and I'd like to downsize to 17" wheels, upsize the stock tire size to BFG AT 265 70R 17. I'll ask for some advice for sure after I read through as many of the threads on this as I can. (Have to educate oneself before asking redundant questions here I believe.).
Finally, thank you Johnny Mac for going easy on me on the 5.8 typo. haha. Ya ever type something up... reread it... think it looks good... click send... only to instantly realize you made a mistake? haha... uh... yeah... that was me! yes... 5.7 liter. Either that, or the competitive Marine came out in me just trying to out do everyone with a .1 liter improvement over stock.