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OS Giken Close Ratio Gear Kits

Looking to upgrade your vehicle with a transmission internal from OS Giken? We carry a great variety of OS Giken Close Ratio Gear Kits and other drivetrain performance parts for your vehicle.

We have 9 OS Giken Close Ratio Gear Kits available with free shipping to the Continental US 48 States.

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SHIPS FROM MANUFACTURER NS201-GA OS Giken Nissan Skyline FS5W30A Trans 3-Speed Close Ratio Gear Kit $2,370.00 Details
SHIPS FROM MANUFACTURER NS201-GL OS Giken Nissan Skyline FS5W30A Trans 3-Speed Close Ratio Gear Kit w/ 5th Gear $2,890.00 Details
SHIPS FROM MANUFACTURER NS201-GN OS Giken Nissan Skyline FS5W30A Trans 3-Speed Close Ratio Gear Kit w/ 5th Gear and Reinf Input Shaft $3,350.00 Details
Acura OS Giken Close Ratio Gear Kits
Acura Integra View all Acura Integra Transmission Internals
SHIPS FROM MANUFACTURER HA031-GA OS Giken Honda Civic EK4(9) DC2 B18/16A 3-Speed Close Ratio Gear Kit (3.077/1.600/1.261) 1994-2001 Acura Integra GS-R $1,200.10 Details
Honda OS Giken Close Ratio Gear Kits
Honda Civic View all Honda Civic Transmission Internals
SHIPS FROM MANUFACTURER HA031-GA OS Giken Honda Civic EK4(9) DC2 B18/16A 3-Speed Close Ratio Gear Kit (3.077/1.600/1.261) 1999-2000 Honda Civic Si $1,200.10 Details
Mazda OS Giken Close Ratio Gear Kits
Mazda RX-7 View all Mazda RX-7 Transmission Internals
SHIPS FROM MANUFACTURER MZ111-GC OS Giken Mazda RX7 FC3S 13BT 5 Speed Close Ratio Gear Kit w/ Input Shaft 1986-1990 Mazda RX-7 GXL 1986-1987 Mazda RX-7 Base 1986-1991 Mazda RX-7 Turbo 1987-1987 Mazda RX-7 LX 1987-1987 Mazda RX-7 LX 2+2 1987-1990 Mazda RX-7 GXL 2+2 1987-1987 Mazda RX-7 Base 2+2 1987-1987 Mazda RX-7 Sport 1988-1988 Mazda RX-7 SE 1988-1988 Mazda RX-7 SE 2+2 1988-1990 Mazda RX-7 GTU 1988-1991 Mazda RX-7 Convertible 1988-1988 Mazda RX-7 10th Anniversary 1989-1990 Mazda RX-7 GTUs 1991-1991 Mazda RX-7 Base $2,910.00 Details
SHIPS FROM MANUFACTURER MZ111-GA OS Giken Mazda RX7 FC3S 13BT 3 Speed Close Ratio Gear Kit 1986-1990 Mazda RX-7 GXL 1986-1987 Mazda RX-7 Base 1986-1991 Mazda RX-7 Turbo 1987-1987 Mazda RX-7 LX 1987-1987 Mazda RX-7 LX 2+2 1987-1990 Mazda RX-7 GXL 2+2 1987-1987 Mazda RX-7 Base 2+2 1987-1987 Mazda RX-7 Sport 1988-1988 Mazda RX-7 SE 1988-1988 Mazda RX-7 SE 2+2 1988-1990 Mazda RX-7 GTU 1988-1991 Mazda RX-7 Convertible 1988-1988 Mazda RX-7 10th Anniversary 1989-1990 Mazda RX-7 GTUs 1991-1991 Mazda RX-7 Base $2,370.00 Details
SHIPS FROM MANUFACTURER MZ121-GC OS Giken Mazda RX7 FD3S 13BT 5 Speed Close Ratio Gear Kit w/ Input Shaft 1993-1995 Mazda RX-7 Touring 1993-1993 Mazda RX-7 R1 1993-1995 Mazda RX-7 Base 1994-1995 Mazda RX-7 R2 $2,910.00 Details
Nissan OS Giken Close Ratio Gear Kits
Nissan 240SX View all Nissan 240SX Transmission Internals
SHIPS FROM MANUFACTURER NS052-GR OS Giken Nissan Silvia (S14) 3-Speed Close Ratio Gear Kit 2.717/1.722/1.232 1989-1990 Nissan 240SX XE 1989-1998 Nissan 240SX SE 1991-1992 Nissan 240SX LE 1991-1993 Nissan 240SX Base 1995-1998 Nissan 240SX Base 1997-1998 Nissan 240SX LE $2,170.30 Details
SHIPS FROM MANUFACTURER NS052-GS OS Giken Nissan 240SX SR20DETTrans 5-Speed Close Ratio Gear Kit 1989-1990 Nissan 240SX XE 1989-1998 Nissan 240SX SE 1991-1992 Nissan 240SX LE 1991-1993 Nissan 240SX Base 1995-1998 Nissan 240SX Base 1997-1998 Nissan 240SX LE $3,380.00 Details