The forces generated by 1800 pounds of car being jerked around by a 30,000 pound RV are substantial. If you believe that two single bolts are enough to hold the vehicle without it breaking away and becoming a rolling projectile on the highway, think about the shear strength of those bolts. The threads on the 'Tow' hook are rounded (read that somewhere here) and for me fabricating something that was not engineered and designed specifically for towing the vehicle presents too much liability and risk. For the money and piece of mind, I bought Roadmaster and had them professionally installed at the manufacturer in Portland, Or. JMHO