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  • Your one-stop shop for gearbox components. SOME GEARS, FINAL DRIVES, LSD'S ARE OUT OF STOCK IN THE USA, BUT CAN SHIP INTERNATIONALLY WITH AN ADDITIONAL SHIPPING CHARGE

    MFactory 3-5 Dual Cone B Series Close Ratio Gear Set W/ Carbon Synchros
    MFactory 3-5 Dual Cone B Series Close Ratio Gear Set W/ Carbon Synchros
    MFactory 3-5 Dual Cone B Series Close Ratio Gear Set W/ Carbon Synchros
    MFactory 3-5 Dual Cone B Series Close Ratio Gear Set W/ Carbon Synchros

    MFactory 3-5 Dual Cone B Series Close Ratio Gear Set W/ Carbon Synchros


    ALL RATIOS WILL BE RESTOCKED BY EARLY NOVEMBER OR SOONER! THANK YOU FOR YOUR PATIENCE DURING THESE TIMES.

    Description: We are proud to offer the most technologically advanced Close Ratio Gear Sets on the market today. These B-Series 3rd and 4th gears utilize dual-cone carbon synchro technology for smooth and precise shifting.


    Includes: 
    Close ratio 3rd, 4th, 5th gears and 3-5 Pro Series Carbon Composite Synchros (Dual cone 3/4, Single cone 5th) Includes Hub for 3-4

    Choice of Ratios:

    Option 1 (3rd: 1.636, 4th: 1.310, 5th: 1.054) 

    Option 2 (3rd: 1.667, 4th: 1.357, 5th: 1.129)

    Option 3 (3rd: 1.700, 4th: 1.410, 5th: 1.207)

    Fits: 1994-2001 USDM Acura Integra B18C GSR ITR Y80 S80,  B16 Hydro S4C Y21.    PART # MF-TRS-01BSB

    Suitable for: Street Cars, Road/Race

    Power Rating: ~500whp

    Warranty: 1 Year Manufacturers Warranty against defects upon Receipt & Professional Installation