Quote:
Originally Posted by jrd1990zr1
There are two styles of lifting arms. Symmetric which means the arms are essentially the same lenght and asymmetric which has longer rear arms which places the car door further back. (My door opening comment)
All two post lifts need to get the hydraulic fluid from the pump to the two posts and equilizer cables to keep the car level side to side. Many two post lifts have the cables and the hydraulic piping over the top of the car. (increasing the height requirement since they must be above the car in the maximum height position) An alternative is the floor plate where the piping and cables cross between the posts under a piece of steel, beveled so a car can go over it.
John 
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This helped quite a bit. Now I am sure thanks for your comments and time responding. John