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ProActive Gear Transmission Components

- Purchase the highest quality transmission parts in the aftermarket. Our parts have been manufactured according to the exact specifications as the OEM.
- Browse our T56 Transmission components which undergo the REM Superfinishing process.


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M5R1 5th Synchro Ring, 30T ; Part # M5R1-14

5th Synchro Ring, 30T

Our Price: $9.99
M5R1 Reverse Synchro Ring, 36T; Part # M5R1-14A

Reverse Synchro Ring, 36T

Our Price: $9.99
M5R1 5th Synchro Ring, 30T, Larger Ring than M5R1-14; Part # M5R1-14B

5th Synchro Ring, 30T, Larger Ring than M5R1-14

Our Price: $9.99
M5R1 Reverse Synchro Ring, 24T; Part # M5R1-14C

Reverse Synchro Ring, 24T

Our Price: $9.99
M5R2 Reverse Synchro Ring, Older Version, 36T; Part # M5R2-14

Reverse Synchro Ring, Older Version, 36T

Our Price: $10.99
ZF542/547 3/4/5 Brass Synchro Ring; Part # ZF542-14

3/4/5 Brass Synchro Ring

Our Price: $14.99
ZF542/547 3/4/5 Brass Synchro Ring; Part # ZF547-14C

3/4/5 Brass Synchro Ring

Our Price: $14.99
ZF542/547 1-2 Brass Synchro Ring; Part # ZF542-14A

1-2 Brass Synchro Ring

Our Price: $15.99
ZF542/547 Reverse Brass Synchro Ring; Part # ZF542-14B

Reverse Brass Synchro Ring

Our Price: $15.99
ZF542/547 Reverse Brass Synchro Ring; Part # ZF547-14E

Reverse Brass Synchro Ring

Our Price: $16.99
T56 TREMEC Original Equipment: Reverse Synchro Ring; Part # 1386-091-007 T56 TREMEC Original Equipment: Reverse Synchro Ring; Part # 1386-091-007

TREMEC Original Equipment: Reverse Synchro Ring

Our Price: $19.99
ZF542/547 1-2 Shift Fork, Fits Both ZF S5-42 and S5-47M; Part # ZF547-23

1-2 Shift Fork, Fits Both ZF S5-42 and S5-47M

Our Price: $21.99
M5R2 1-2 Aluminum Shift Fork; Part # M5R2-23C

1-2 Aluminum Shift Fork

Our Price: $22.99
M5R2 3-4 Aluminum Shift Fork; Part # M5R2-23D

3-4 Aluminum Shift Fork

Our Price: $22.99
T56 TREMEC Original Equipment: 1-2 Synchro Ring, Outer; Part # 1386-091-001 T56 TREMEC Original Equipment: 1-2 Synchro Ring, Outer; Part # 1386-091-001

TREMEC Original Equipment: 1-2 Synchro Ring, Outer

Our Price: $24.99
ZF542/547 3-4 Shift Fork, Fits Both ZF S5-42 and S5-47M; Part # ZF542-23A

3-4 Shift Fork, Fits Both ZF S5-42 and S5-47M

Our Price: $24.99
ZF650/750 Creeper/Reverse Shift Fork; Part # ZF650-23

Creeper/Reverse Shift Fork

Our Price: $24.99
T56 TREMEC Original Equipment: Inner Cone, Fits F-Body, Cobra, Viper; Part # 1386-025-001 T56 TREMEC Original Equipment: Inner Cone, Fits F-Body, Cobra, Viper; Part # 1386-025-001

TREMEC Original Equipment: Inner Cone, Fits F-Body, Cobra, Viper

Our Price: $29.99
NV5600 1-6 Reverse Middle Synchro Ring; Part # 22760

1-6 Reverse Middle Synchro Ring

Our Price: $29.99
M5R1 3rd Gear, Main Shaft, 29T; Part # M5R1-11

3rd Gear, Main Shaft, 29T

Our Price: $33.99
NV4500 4th Gear Input Clutch Cone; Part # 21313

4th Gear Input Clutch Cone

Our Price: $34.99
G56 Front Bearing Retainer; Part # G56-6

Front Bearing Retainer

Our Price: $39.99
M5R2 5th Gear, Counter Shaft, Updated, 33T; Part # M5R2-19A

5th Gear, Counter Shaft, Updated, 33T

Our Price: $44.99
M5R2 2nd Gear, Main Shaft, 35T; Part # M5R2-21

2nd Gear, Main Shaft, 35T

Our Price: $44.99
T56 TREMEC Original Equipment: 5-6 Synchro Ring; Part # 1386-591-005 T56 TREMEC Original Equipment: 5-6 Synchro Ring; Part # 1386-591-005

TREMEC Original Equipment: 5-6 Synchro Ring

Our Price: $45.99
NV4500 Front Bearing Retainer for 1 3/8" Input Shaft; Part # 18161D NV4500 Front Bearing Retainer for 1 3/8" Input Shaft; Part # 18161D

Front Bearing Retainer for 1 3/8" Input Shaft

Our Price: $45.99
G56 1-2 Synchronizer Ring (Inner); Part # G56-14AI

1-2 Synchronizer Ring (Inner)

Our Price: $49.99
G56 5-6th Synchronizer Ring; Part # G56-14

5-6th Synchronizer Ring

Our Price: $52.99
T56 3-4 Shift Fork w/ Brass Fork Pads Installed

T56 3-4 Shift Fork with Brass Pads installed as shown
OE Reference: TNEC0843

Our Price: $52.99
T56 TREMEC Original Equipment: 3-4 Synchro Ring; Part # 1386-591-003 T56 TREMEC Original Equipment: 3-4 Synchro Ring; Part # 1386-591-003

TREMEC Original Equipment: 3-4 Synchro Ring

Our Price: $54.99