My truck was getting too rusty to let it go. It is now in pieces. The axles and just about anything underneath that is removable is out getting sand blasted and painted (I hate powder coat under vehicles!). The control arms were a *****! We had to torch one of them out in the vehicle it was not fun. A couple of others we cut the bolts with a sawzall; but if you can get by the bushing sleave in the middle of the bushing forget it, they eat sawblades like candy. The problem with the control arms and the other bushing components, like the rear leaf spring eyes, is the bolts freeze inside the sleeves and become damn near impossible to get out. So the job could be easy if you have the tools and rust is not an issue. Otherwise it can quickly get difficult. Fortunately I had some excellent help from Jim and Aron of Triple D performance. Also have a fire extinguisher handy if the torch comes out.
I have a set of DT control arms on order. I ordered the stock length because I don't want to deal with interference issues with my trackbar mod and the diff cover or get any new problems like death wobble so I am pretty much trying to return the truck to stock geometry which works very well with my camper mounted up. My leveling kit is a camper and air bags. DT is the only places I found that sells stock length control arms. There are other fancier arms that might offer some benefits but I did not think they would provide me with any noticable advantage in my use.
With almost 300k miles on the truck the rubber bushings, everyone of them, could have been put back into service; the rear spring bushings are not getting changed. All of them had only slight cracking and deterioration. I doubt the poly bushings will do so well. I replaced my front and rear stabilizer bar bushings with stock rubber bushings that were very cheap from MOPAR4LESS.com. I also ordered a couple of hundred $$ worth of nuts and bolts for the underside of the truck from them.
As luck would have it my digital camera puked the day I started the rejuvenation process on my truck so I won't have much for pictures but the difference in condition and appearance of the undercarriage will be dramatic.
Good luck.
Scott