The Gear Box Transmissions, LLC.
T56 Corvette GTO CTSV

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Stage 2 Rebuild Kit for T56 Corvette, GTO or CTSV

KIT IS AVAILABLE WITH OR WITHOUT THE 1-2 OUTER RINGS.

Stage II Rebuild Kit for T56 Corvette, GTO or CTSV applications. Kit includes:

From $1,068.08


T56 Corvette GTO CTSV Master Overhaul Kit Koyo Bearings

Master overhaul kit for Corvette, GTO & CTSV Borg Warner / Tremec T56 Transmissions with Koyo Hi-Cap Bearings. 

KIT IS AVAILABLE WITH OR WITHOUT THE 1-2 OUTER SYNCHRO RINGS.

Geniune OEM Tremec Parts.

From $866.85


T56 Corvette GTO CTSV Master Overhaul Kit Premium Bearings

Timken master overhaul kit for Corvette, GTO & CTSV Borg Warner / Tremec T56 Transmissions.

KIT IS AVAILABLE WITH OR WITHOUT THE 1-2 OUTER SYNCHRO RINGS.

From $1,021.77


T56 Corvette GTO CTSV Basic Overhaul Kit

Basic Overhaul kit for Corvette, GTO & CTSV Borg Warner / Tremec T56 Transmissions. 

KIT IS AVAILABLE WITH OR WITHOUT THE 1-2 OUTER SYNCHRO RINGS.

Genuine OEM Tremec / Borg Warner parts - USA made!

From $684.32


T56 Carbon Fiber / Kevlar Ring Set Corvette GTO CTSV

Complete Carbon fiber friction ring set for all Corvette, GTO & CTSV T56 transmssions.

$425.41


T56 Corvette GTO CTSV Synchronizer Rings / Blocker rings, Carbon Fiber

Individual synchro ring for Corvette, GTO & CTSV T56 transmissions.

From $13.53


T56 Complete Bearing & Shim Kit Timken or Koyo

Complete bearing & shim kit for T56 transmissions with Premium Timken, Koyo & Tremec bearings or  Koyo Hi Capacity Bearings for Corvette, GTO, 

From $167.00


T56 Snap Ring Kit

Complete snap ring kit for all T56 transmissions. Genuine OEM Tremec / Borg Warner parts.

From $24.50


T56 Shim Kit

Shim pack for all T56 transmissions.

$34.00


T56 1-2 Shift Fork

T56 1-2 shift fork fits all T56 transmissions. Genuine OEM Borg Warner / Tremec part.

$17.95


T56 3-4 Steel Shift Fork

OEM Tremec T56 steel 3-4 shift fork with stock pads.

This is the upgraded T56 3-4 steel shift fork used in the Vipers and will fits all T56 transmissions.

$47.50


T56 3-4 Steel Shift Fork W/ Bronze Fork Pads Tremec

T56 Steel 3-4 shift fork with bronze fork pads.

$73.00


T56 5-6 Shift Fork

T56 5-6 shift fork. Genuine OEM Tremec / Borg Warner part.

Fits all T56 transmissions.

$23.95


T56 Reverse Shift Fork

T56 Reverse Shift Fork. Fits all T56 Transmissions.

Genuine OEM Borg Warner / Tremec part.

$19.95


Bronze Fork Pads

Bronze fork pads are a necessary upgrade for all T56 high performance and racing applications! Fit all T56 transmissions.

From $19.90


T56 Bronze Fork Pads Set of 8

These are a high performance upgrade for the T56 transmission. USA Made!

Will not fail or wear like the stock teflon pads.

$69.00


T56 1-2 Synchronizer Assembly Corvette GTO CTSV

1-2 synchronizer assembly for the T56 transmission in a Corvette, GTO and CTSV application.

$135.06


T56 3-4 Synchronizer Assembly Corvette GTO CTSV

T56 3-4 synchronizer assembly for Corvette, GTO & CTSV applications.

$113.87


T56 5-6 Synchronizer Assembly Corvette GTO CTSV

5-6 synchronizer assembly for the T56 transmission in a Corvette, GTO or CTSV application.

$101.08


T56 Reverse Synchronizer Assembly Corvette GTO CTSV

T56 Reverse Synchronizer Assembly. New Genuine OEM Borg Warner / Tremec part - USA made! Fits all T56 transmissions,

$97.95


T56 1st Gear 2.66 or 2.97 Corvette GTO CTSV

T56 1st gear for Corvette, GTO & CTSV. 

From $351.00


T56 2nd Gear 2.66 or 2.97 Corvette GTO CTSV

2nd gear for the T56 transmission in a Corvette, GTO & CTSV.

From $311.00


T56 3rd Gear 2.66 or 2.97 Corvette GTO CTSV Tremec or Aftermarket

3rd gear for T56 transmissions in Corvette, GTO & CTSV applications.

From $311.00


T56 5th Gear 2.66 or 2.97 Corvette GTO CTSV

5th gear for the T56 transmissions in a Corvette, GTO & CTSV.

$311.00


T56 6th Gear 2.66 or 2.97 Corvette GTO CTSV

6th gear for the T56 transmissions in a Corvette, GTO & CTSV.

$311.00


T56 Reverse Gear 35 Tooth Corvette GTO CTSV OEM or Aftermarket

T56 Reverse Gear with 35 Teeth. Fits all T56 Transmissions. Aftermarket or OEM

From $91.00


T56 5-6 Gear Cluster OEM or Aftermarket Firebird Camaro Viper CTSV Corvette Cobra

T56 5-6 gear cluster available tooth counts:

From $88.00


T56 Corvette Z06 / Pontiac G8 Cluster 1 piece

T56 Corvette Z06 MM6 1 piece cluster for 2.66 ratio. Tooth count 36-33-28-17. TUCF5726

T56 Pontiac G8  1 piece cluster for 2.97 ratio. Tooth count  38-34-26-19  TUCF4295

From $546.25

T56 2.97 Ratio Cluster Gear Kit Corvette GTO

Cluster gear kit for 2.97 ratio GTO & Corvette (w/ 2 piece countershaft) T56 transmissions.

$733.21

T56 Corvette / GTO Countershaft Extension

T56 Countershaft extension.

$90.62


T56 Corvette GTO CTSV Input shaft 2.66 or 2.97 ratio

From $325.00


T56 Corvette Mainshaft 27 spline

Genuine OEM Tremec mainshaft for 27 spline T56 Corvette transmissions.

$263.00


T56 Corvette Mainshaft 30 spline

Genuine OEM Tremec mainshaft for T56 Corvette with 30 spline output.

$275.00


T56 GTO Mainshaft

T56 mainshaft fits GTO transmissions. 27 spline.

$178.00


T56 CTSV Mainshaft

CTSV T56 mainshaft. Genuine Tremec part  #TUFP2049 or TUFP6201

From $294.00


T56 Clutch Housing Adaptor / Front Cover Camaro, Firebird, GTO

Fits LS applications, 1998-2002 Camaro & Firebird, & 2004-2007 GTO.

$317.50


Billet Keys for the 3-4, 5-6 or Reverse Synchronizer Assembly

This is one set of 3 billet keys (as pictured). Each of the synchro assemblies requires one set (3) of keys. These keys will fit the 3-4, 5-6 OR Reverse synchro assemblies. Springs are included, which is why we need to know which synchro assy are purchasing the keys for.

From $55.00


Billet Keys 1-2

Billet keys are a necessary upgrade for high performance and race applications.  USA Made!

$45.00


T56 T5 T45 Stock Shifter Bushing

$5.80


Bronze Shifter Bushing / Shift Cup Isolator T56 GTO

Bronze shifter bushing for GTO T56 only,

$19.50


T56 5-6 shift Lever

$82.73


T56 Reverse Shift Lever

T56 reverse shift lever fits all T56 transmissions.

OEM Tremec part.

$20.00


T56 Detent Guide Plate F body Cobra Viper Corvette GTO CTSV Holden

Detent guide plate for the following T56 transmissions:

$18.00


T56 Detent Guide Plate Bolts

Detent guide plate retaining bolts. Each plate requires 2 bolts.

$1.25


T56 Shift Guide Bolt

Shift guide bolt for all T56 transmissions.

$2.00


T56 Front Input Shaft Seal F body, Viper, Cobra, Corvette, GTO, CTSV,

Front Input Shaft Seal for all Camaro, Firebird, GTO, CTSV, Corvette & Cobra T56 transmissions.

$2.25


T56 Corvette & TR6060 Corvette shift rail & Rear seals

Shift Rail and Rear seals for T56 Corvette & 6060 Corvette applications

From $2.73


T56 Extension Housing / No Walk Tailhousing Bushing

T56 'No Walk' bronze extension housing / tailhousing bushing fits:

  • Camaro, Firebird 1993-2002
  • GTO & Ford Cobra - All years

$34.95


T56 Speed Sensor Camaro Firebird GTO CTSV

Speed Sensor for all  Camaro, Firebird, GTO & CTSV T56 transmissions.

$19.63


Shift Rail Linear Bearing/ Roller Bearing T56 Corvette CTSV TR6060

Shift rail bushing / roller bearing for T56 Corvvette CTSV, 500 / 600 and TR6060 applications.

$26.32

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The Gear Box Transmissions, LLC.

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Phone 734-793-0727

* Fax 734-793-0729