One inch separation between each hole for adjustability. Floating top gusset allows any height frame. Frame plate add strength and a surface to weld bracket to with jigs for easy assembly. 2.625" mounting width with 9/16" bolt hole for common sized Cartridge Joints (Johnny, Flex, Ballistic, etc). Can be drilled out to larger hole size for 1.25" rod ends with spacers. Can be easily modified for smaller joints Made from 1/4" thick boxed steel plate for strength and impact resistance. Grease fitting access on top to allow easy maintenance of your most abused joint.