A brand new axial (wobble plate) drive base that works with a standard 3/4" solid output shaft. Standard 2 5/8" bolt spacing for attachment to the engine. Other dimensions shown in note visible on the photos. Ordered in error as a replacement for the pump base that wore itself out (see next item). $10. Free: a 3100 psi axial drive pump head in fine working condition (the black and brass component in photo 4; pump head itself is in photo 5). 4th photo shows it attached to the worn out drive base. The pump head attachment bolt spacing (to axial plate drive base) is 3" center to center.