Each American Powertrain Conversion kits include the components required to convert your vehicles manual driveline to a high perforamance Tremec Magnum 6-speed overdrive transmission. Magnum 6-speed (Wide Ratio) is rated at...
Each American Powertrain Conversion kits include the components required to convert your vehicles manual driveline to a high perforamance Tremec Magnum 6-speed overdrive transmission. Magnum 6-speed (Wide Ratio) is rated at...
Each American Powertrain Conversion kits include the components required to convert your vehicles manual driveline to a high perforamance Tremec Magnum 6-speed overdrive transmission. Magnum 6-speed (Close Ratio) is rated at...
1960-72 GM Trucks - American Powertrain Wide Ratio T-56 Magnum Driveline Conversion Kit
Each American Powertrain Conversion kits include the components required to convert your Chevrolet and GMC trucks manual driveline to a high perforamance Tremec T56 Magnum 6-speed overdrive transmission (Wide Ratio) and is...

1960-72 GM Trucks - American Powertrain Wide Ratio T-56 Magnum Driveline Conversion Kit
Classic $4894.99 set
1960-72 GM Trucks - American Powertrain Close Ratio T6060 Magnum Driveline Conversion Kit
Each American Powertrain Conversion kits include the components required to convert your Chevrolet and GMC trucks manual driveline to a high perforamance Tremec T6060 Magnum 6-speed overdrive transmission (Close Ratio) and is...

1960-72 GM Trucks - American Powertrain Close Ratio T6060 Magnum Driveline Conversion Kit
Classic $4894.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission specially prepped for your model....
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission specially prepped for your model....
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission specially prepped for your model....

1966-70 Mopar B-Body - American Powertrain TKX-5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Close Ratio; 0.81 O.D.
Classic $4485.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1962-67 Chevy II / Nova - American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Close Ratio; 0.81 O.D.
Classic $4394.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1968-74 Chevy II / Nova; American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Wide Ratio; 0.68 O.D.
Classic $4190.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1968-74 Chevy II / Nova - American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Close Ratio; 0.81 O.D.
Classic $4190.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1967-69 Camaro; Firebird; American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Wide Ratio; 0.68 O.D.
Classic $4175.99 set
American Powertrain ProFit Conversion combo kits include the main components required to convert your vehicles driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier fit...
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1970-74 Camaro; Firebird; American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Close Ratio; 0.81 O.D.
Classic $4175.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1967-76 Mopar A-Body American Powertrain TKX 5-Spd Driveline Conversion Kit; 600ft-lb Constant Load Rated; Close Ratio; with 0.81 O.D.
Classic $4175.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1970-74 Camaro; Firebird; American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Wide Ratio; 0.68 O.D.
Classic $4175.99 set
There are exotic transmissions designed for the quarter mile or circle tracks, but if your Muscle Car sees city streets or country lanes you need a heavy-duty, synchronized, close-ratio gearbox with a helical gearset and, to...
There are exotic transmissions designed for the quarter mile or circle tracks, but if your muscle car sees city streets or country lanes you need a heavy-duty, synchronized, close-ratio gearbox with a helical gearset and, to...
There are exotic transmissions designed for the quarter mile or circle tracks, but if your Muscle Car sees city streets or country lanes you need a heavy-duty, synchronized, close-ratio gearbox with a helical gearset and, to...
There are exotic transmissions designed for the quarter mile or circle tracks, but if your Muscle Car sees city streets or country lanes you need a heavy-duty, synchronized, close-ratio gearbox with a helical gearset and, to...
UltraCase M22Z 4 Speed Transmission: M22 CLOSE RATIO 2.98-1st, 2.04-2nd, 1.46-3rd. 1.0 4th; 10/27 Spline; Bolt Levers
Classic $4099.99 ea
Tremec TKX 5-Speed Transmission; Ford Applications; Quick Launch Close Ratio; 10-Spline; 0.72 O.D.
These American Powertrain Tremec TKX 5-speed series with overdrive are a high performance transmission rated for 600 ft/lbs of torque capacity, and capable of engine speeds of 8,000 RPM's with shifts at 7,500 RPM's. Each unit...

Tremec TKX 5-Speed Transmission; Ford Applications; Quick Launch Close Ratio; 10-Spline; 0.72 O.D.
Classic $2894.99 ea
These American Powertrain Tremec TKX 5-speed series overdrive high performance transmissions. Available in (Road Race) edition and offers a variety of flexibility features and is rated at 600 ft/lbs, includes a unique...

American Powertrain TKX 5-Speed Tremec Transmission; GM Applications; 26-Spline; Close Ratio: 0.81 O.D.
Classic $2894.99 ea
American Powertrain ProFit conversion kits include the components required to convert your vehicles manual driveline to a modern Tremec Magnum 6 speed manual overdrive transmission. Includes a Magnum 6 speed (Close Ratio)...
American Powertrain ProFit conversion kits include the components required to convert your vehicles manual driveline to a modern Tremec Magnum 6 speed manual overdrive transmission. Includes a Magnum 6 speed (Close Ratio)...
Each American Powertrain Conversion kits include the components required to convert your vehicles manual driveline to a high perforamance Tremec Magnum 6-speed overdrive transmission. Magnum 6-speed (Wide Ratio) is rated at...
Each American Powertrain Conversion kits include the components required to convert your vehicles manual driveline to a high perforamance Tremec Magnum 6-speed overdrive transmission. Magnum 6-speed (Close Ratio) is rated at...
Each American Powertrain Conversion kits include the components required to convert your vehicles manual driveline to a high perforamance Tremec Magnum 6-speed overdrive transmission. Magnum 6-speed (Close Ratio) is rated at...
Each American Powertrain Conversion kits include the components required to convert your vehicles manual driveline to a high perforamance Tremec Magnum 6-speed overdrive transmission. Magnum (Wide Ratio) transmission features...

1968-74 Chevy II / Nova; American Powertrain Magnum 6-Speed Transmission Conversion Set; Wide Ratio; 0.50 O.D.
Classic $4894.99 set
American Powertrain ProFit conversion kits include the components required to convert your vehicles manual driveline to a modern Tremec Magnum 6 speed manual overdrive transmission. Includes a Magnum 6 speed (Close Ratio)...

1968-74 Chevy II / Nova; American Powertrain Magnum 6-Speed Transmission Conversion Set; Close Ratio; 0.63 O.D.
Classic $4894.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission specially prepped for your model....
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission specially prepped for your model....
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission specially prepped for your model....

1966-70 Mopar B-Body; American Powertrain TKX-5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Wide Ratio; 0.68 O.D.
Classic $4485.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1962-67 Chevy II / Nova - American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Wide Ratio; 0.68 O.D.
Classic $4394.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your Chevrolet and GMC trucks manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission specially prepped for...

1960-87 American Powertrain TKX 5-Speed Driveline Conversion Kit; GM Truck Applications; Close Ratio; 0.68 O.D.
Classic $4394.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1967-76 Mopar A-Body American Powertrain TKX 5-Spd Driveline Conversion Kit; 600ft-lb Constant Load Rated; Wide Ratio; 0.68 O.D.
Classic $4394.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1975-81 Camaro; Firebird; American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Wide Ratio; 0.68 O.D.
Classic $4194.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1967-69 Camaro; Firebird; American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Close Ratio; 0.81 O.D.
Classic $4175.99 set
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...
American Powertrain ProFit Conversion combo kits include the components required to convert your vehicles manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission. Specially prepped case mods for easier...

1975-81 Camaro; Firebird; American Powertrain TKX 5-Speed Driveline Conversion Kit; 600ft-lb Constant Load Rated; Close Ratio; 0.81 O.D.
Classic $4175.99 set
There are exotic transmissions designed for the quarter mile or circle tracks, but if your Muscle Car sees city streets or country lanes you need a heavy-duty, synchronized, close-ratio gearbox with a helical gearset and, to...
1963-70 UltraCase M22 4 Speed Transmission: M22 CLOSE RATIO 2.20-1st, 1.64-2nd, 1.27-3rd. 1;1-4th; 10/27 Spline; Bolt Levers
Classic $4099.99 ea
There are exotic transmissions designed for the quarter mile or circle tracks, but if your Muscle Car sees city streets or country lanes you need a heavy-duty, synchronized, close-ratio gearbox with a helical gearset and, to...
1970-74 UltraCase M22 4 Speed Transmission: M22 CLOSE RATIO 2.20-1st, 1.64-2nd, 1.27-3rd. 1;1-4th; 26/32 Spline; Bolt Levers
Classic $4099.99 ea
There are exotic transmissions designed for the quarter mile or circle tracks, but if your Muscle Car sees city streets or country lanes you need a heavy-duty, synchronized, close-ratio gearbox with a helical gearset and, to...
These American Powertrain Tremec TKX 5-speed series overdrive high performance transmissions offer a variety of flexibility features and is rated at 600 ft/lbs, up to 8000rpm shifting capacity. The TKX transmission utilizes a...

Tremec TKX 5-Speed Transmission Complete Swap;1983-93 Ford Mustang ; 26-Spline; Close Ratio; 0.68 O.D.
Classic $3995.99 ea
American Powertrain Magnum Wide Ratio 6-Speed Tremec Transmission
New high performance Tremec Magnum 6-speed for most vehicle models. These premier T-6060 transmissions offers (Wide Ratio) setup gear ratio and double overdrive ratio, rated at 700 ft/lb torque capacity and for up to 700hp...

American Powertrain Magnum Wide Ratio 6-Speed Tremec Transmission
Classic $3544.99 ea
American Powertrain Magnum Close Ratio 6-Speed Tremec Transmission
New high performance Tremec Magnum 6-speed for most vehicle models. These premier T-6060 transmissions offers (Close Ratio) setup gear ratio and double overdrive ratio, rated at 700 ft/lb torque capacity and for up to 700hp...

American Powertrain Magnum Close Ratio 6-Speed Tremec Transmission
Classic $3544.99 ea
Tremec Magnum Close Ratio 6-Speed Transmission For Ford - 26 Spline
New high performance Tremec Magnum 6-speed for most vehicle models. These premier T-6060 transmissions offers (Close Ratio) setup gear ratio and double overdrive ratio, rated at 700 ft/lb torque capacity and for up to 700hp...

Tremec Magnum Close Ratio 6-Speed Transmission For Ford - 26 Spline
Classic $3544.99 ea
Tremec Magnum Close Ratio 6-Speed Transmission For Ford - 26 Spline
New high performance Tremec Magnum 6-speed for most vehicle models. These premier T-6060 transmissions offers (Close Ratio) setup gear ratio and double overdrive ratio, rated at 700 ft/lb torque capacity and for up to 700hp...

Tremec Magnum Close Ratio 6-Speed Transmission For Ford - 26 Spline
Classic $3544.99 ea
These American Powertrain Tremec TKX 5-speed series overdrive high performance transmissions. Available in (Quick Launch) edition and offers a variety of flexibility features and is rated at 500 ft/lbs, includes a unique...

American Powertrain TKX 5-Speed Tremec Transmission; GM Applications; 26-Spline; Quick Launch Close Ratio; 0.72 O.D.
Classic $2894.99 ea
These American Powertrain Tremec TKX 5-speed series with overdrive are a high performance transmission rated for 600 ft/lbs of torque capacity, and capable of engine speeds of 8,000 RPM's with shifts at 7,500 RPM's. Each unit...

Tremec TKX 5-Speed Transmission; Ford Applications - 26-Spline; 600ft-lb Constant Load Rated; Close Ratio; 0.81 O.D.
Classic $2894.99 ea
Tremec TKX 5-Speed Transmission; Ford Applications; 26-Spline; Quick Launch Close Ratio; 0.72 O.D.
These American Powertrain Tremec TKX 5-speed series with overdrive are a high performance transmission rated for 600 ft/lbs of torque capacity, and capable of engine speeds of 8,000 RPM's with shifts at 7,500 RPM's. Each unit...

Tremec TKX 5-Speed Transmission; Ford Applications; 26-Spline; Quick Launch Close Ratio; 0.72 O.D.
Classic $2894.99 ea
Tremec TKX 5-Speed Transmission; Ford Applications; 26-Spline; Close Ratio; 0.68 O.D.
These American Powertrain Tremec TKX 5-speed series with overdrive are a high performance transmission rated for 600 ft/lbs of torque capacity, and capable of engine speeds of 8,000 RPM's with shifts at 7,500 RPM's. Each unit...

Tremec TKX 5-Speed Transmission; Ford Applications; 26-Spline; Close Ratio; 0.68 O.D.
Classic $2894.99 ea
American Powertrain Tremec TKX 5-speed series overdrive high performance transmission. The TKX 5-speed offers a variety of flexibility features and is rated at 600 ft/lbs, includes a unique internal shaft-rail system, 26...

American Powertrain TKX 5-Speed Tremec Transmission; GM Applications; 26-Spline; Wide Ratio: 0.68 O.D.
Classic $2894.99 ea
American Powertrain ProFit Conversion combo kits include the components required to convert your Chevrolet and GMC trucks manual driveline to a modern Tremec TKX 5 speed manual overdrive transmission specially prepped for...

1960-87 American Powertrain TKX 5-Speed Driveline Conversion Kit; GM Truck Applications; Wide Ratio; 0.72 O.D.
Classic $4394.99 set