A. The Asymmetric Design two post lift (CL 9,000 BPA, CL 9,000 OHA, CJ 10,000 BPA, CJ 10,000 OHA) allows you to lift a car or truck off center from the two posts, either more to the front, or more to the rear (this is called “30/70” – 30% of the vehicle to one side of the posts, 70% of the vehicle to the opposite side of the posts). This allows you to open doors freely without the them hitting the posts. This model is recommended when mostly lifting cars or light trucks, as opposed to SUV’s and larger trucks with a longer wheelbase. The Symmetric Design two post lift (CL 9,000 BP, CJ 10,000 OH, SL 10,000 OH, SL 12,000 OH) is ideal for lifting vehicles that have a long wheelbase. The vehicle is distributed more evenly “50/50” (50% of the vehicle up front / 50% of the vehicle to the rear), making the vehicle more secure when lifted. This design can be used for lifting just about any standard truck or car on the market.