The biggest ram in Howe's heavy duty rack lineup: 3.0 inches of ram bore and 6.0 inches of rack travel. Howe lists its 3.0-inch-ram heavy duty racks for 39 to 42 inch tires, so this is the one for the really big rubber.
It's a widespread rack with a 1.5:1 ratio and no built-in control valve.
Howe sells its parts for off-highway use only.
Howe Performance part number 113.