Some of the many pieces of linkage hardware available for the J-D suspensions (catalog excerpts are shown at [id=68163506]). The t-shaped tab on any given piece is inserted into the center opening of the top or bottom spider fitting, then rotated 90 degree to lock in place. A cotter pin (not shown here) inserted through the small hole in each fitting keeps the units from separating -- similar to the cotter pin arrangement on other suspension strings. [id=68163046] for hardware close up.