Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Synchronizer Ring, M/T

DIMENSIONS
Synchro Ring-to-Gear Clearance:
Standard: 0.85 - 1.10 mm (0.033 - 0.043 inch)
Service Limit: 0.4 mm (0.016 inch)

Double Cone Synchro-to-Gear Clearance: [1]
Standard:
(A): (Outer Synchro Ring to Synchro Cone) 0.5 - 1.0 mm (0.020 - 0.039 inch)
(B): (Synchro Cone to Gear) 0.5 - 1.0 mm (0.020 - 0.039 inch)
(C): (Outer Synchro Ring to Gear) 0.95 - 1.68 mm (0.037 - 0.066 inch)
Service Limit:
(A): 0.3 mm (0.012 inch)
(B): 0.3 mm (0.012 inch)
(C): 0.6 mm (0.024 inch)

[1] Refer to service procedure for further information.