• Provides solid base support for a variety of seat hardware
• Mounts Garelick fore and aft seat slides and 360° swivel spider combinations
• Compatible with Garelick hardware
• Fore & aft seat slides GAR#'s 20000, 21000, 75080-75083
• 2-7/8" diameter fluted stanchion tube, 9" diameter 6 hole base plate