Dodge Ram trucks are prone to a dangerous phenomenon called "death wobble" where the steering suddenly shakes violently at high speeds, which the owner of Source Automotive experienced at nearly 100 mph. Older Dodge diesel trucks are more susceptible as parts like wheel bearings and tie rods wear out. Source Automotive recommends installations like a steering stabilizer, tie rod upgrade kit, or track bar to improve steering and prevent death wobble. They urge customers to upgrade old components and seek their expertise to avoid the serious safety risks of this issue.