[Mr.Fixit]

On your car, I would look at the CV joints, making sure the rubber booties are not torn, and the joins have no shiny spots from hiting the frame which would indicate a broken diff mount. Motor and tranny mounts can break, look at them. Looking at your fluids can let you know of an internal tranny, motor, or diff wear issue. The bushings will wear out on the suspension, so look at them. Short of removing x-raying or magnafluxing every componenton the car, just inspect visually the components in question and look for anything that is abnormal, check fasteners for tightness (headers loosen up all the time) make sure your plumbing is not wearing or leaking, make sure nothing is loose. Start with parts that have an expected lifespan that is short, always check the critical safety parts like brakes. What are you specifically worried about?