Quote Originally Posted by Henry Rifle
I think we're talking parallel 4-bar, not a racing 4-link. Most of the manufacturers don't place the top bar very far above the C/L of the rear axle.
Makes good reading and since most chassis mfrs offer a version is appropriate. The first link, shown below again, is a street design for air suspension.

http://store.gaugemagazine.com/index...ROD&ProdID=176