Farmdog, it depends on what your going to do. If you plan on replacing shackle's,bushings,pins ect then strip it down to the chassis and crossmembers. If your only planning to blast it rest assured sand WILL get into everything. I replaced my torque tube with a pumpkin so I could actually wash out my housing with detergents and water.
Having someone else blast it will save you time and money unless you just have to do it yourself. I did mine but NEVER again. The money and time I spent, as well as time lost, just was not worth it. I sold my pressurized blaster the week after I finished my chassis...... no more blasting for me. Not now but Heii NO!!!
