Description
Superior Parts DB83-01 is a NR83A / A2 – Driver & Bumper Kit which includes SP 877-323 piston driver & SP 878-303 piston bumper. SP 877-323 Piston Driver: Aluminum is crimped into the unilok grooves of the shaft to prevent unscrewing. Hardened steel lock tite and micro-mechanically locked piston driver interface. Guaranteed never to unscrew. SP 878-303 Piston Bumper: Precision machined, virgin high density yellow color plastic framer bumper.
