• Spring cup raises the spring up 3" to enable you to run the RR shock bulb up and have trailing arm clearance
• Also fits spring sliders for when you run a shorter spring to move the spring up so you get more adjustment with the adjuster nut
• Cup has a 1/2" hole and can be drilled out for larger shock shaft sizes
• Available in aluminum or steel
**Steel cup MUST be used when running IMCA sanctioned divisions**