Synchro Ring (Hardened Billet Steel) 1st-2nd, 911 ’95-‘2011, Boxster S -’04 (3×17 Teeth)

This is the outer toothed synchro ring of the 1st and 2nd gear “double cone” synchronizer mechanism. It has (3) groups of (17) teeth. Use with 534.632.SCF and 434.672 ONLY. This is an unlined synchro for use with our double Carbon Fiber-lined Cone Ring (p/n: 534.632.SCF) and unlined Billet Steel Synchro Shift Ring (p/n: 434.672) Only. Original is molybdenum lined and ground on cast steel ring. This is a hardened Steel Billet ring which is much stronger and less expensive than the original as well as better performing. We no longer produce the “old school” version.

Warranty: 12 Months