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Product Details
| Part Number: | SO-J1-3 |
| Brand: | SynchroTech |
Synchrotech SO-J1-3 – Hardened 3rd/4th Gear Synchro Sleeve for Cable-Style B-Series (1989–1991). Engineered as a direct-fit replacement for the 3rd and 4th gear synchro sleeve in early cable-operated Honda B-Series transmissions (codes Y2, A1, and J1), this precision component restores smooth shifting and reinforces transmission reliability.
Features:
- Specific Application Fitment: Designed explicitly for cable-style B-Series transmissions from 1989–1991 (Y2, A1, J1 codes). Includes a precise 54 mm internal diameter to match OEM fitment requirements.
- Hardened Steel Construction: Built with durable, heat-treated steel to withstand high-load conditions and extended drivetrain stresses—ideal for performance applications or high-mileage rebuilds
- OEM-Level Precision Engineering: Manufactured to strict tolerances, this sleeve ensures seamless interchangeability with the original component—no modification needed for installation.
- Reliable Shift Restoration: Replacing worn or fatigued syncro sleeves can improve shift engagement and overall gear synchronization, especially in worn or well-traveled transmissions.
Fitment:
- Cable B series 1989-1991 (Y2 A1 J1)
- Note: 3-4 synchro measures 54mm ID
The Synchrotech SO-J1-3 Synchro Sleeve delivers a tough, precise, and affordable solution for repairing the 3rd and 4th gear synchronization in early cable-driven B-Series transmissions (1989–1991). Its high-strength construction and accurate OEM fitment make it a top choice for maintenance-oriented enthusiasts and performance rebuilds alike.
Due to the manufacturer's price control policy, this item may be excluded from promotions and discounts
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
Acura Integra
1990 Acura Integra GS
1991 Acura Integra GS
1991 Acura Integra GS
1990 Acura Integra LS
1991 Acura Integra LS
1991 Acura Integra LS
1990 Acura Integra RS
1991 Acura Integra RS
1991 Acura Integra RS
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