Subaru Legacy GT Spec B 6-Speed Manual Transmission for Sale

$2,399.00

$2,599.00

Save $200.00 (8%)

Brand: Subaru
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Subaru Legacy GT Spec B 6-Speed Manual Transmission for Sale

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SKU 11942
Brand Subaru
Mileage 55k-65k
Type Transmission
OE/OEM Part Number JDM
Warranty 30 Days
Parts Included 1 - Complete Transmission as Pictured
Modification Notes Use the sensors and solenoids from the original transmission
Additional Notes Replace the Torque Convertor Seal

Level up your boosted build with the holy grail of turbocharged Subie drivetrains. This subaru legacy gt 6 speed setup is the absolute move if you want to hold high horsepower without stripping gears. Sourced directly from low-mileage Japanese donor cars, this high-performance subaru spec b transmission gives you bulletproof durability over weak stock 5-speed boxes. Built around the legendary TY856 architecture, this subaru legacy gt transmission upgrade is totally unmatchable.

Spec B 6-Speed + R180 LSD Overview

Turbocharged EJ engines demand a gearbox that won't snap under sudden torque load. This JDM Spec B setup offers thicker gearsets, revised synchros, and superior thermal management. Coupled with the included high-bias R180 mechanical limited-slip rear differential, your car will dig into corners and shoot out with maximum grip. Say goodbye to wheelspin and hello to aggressive track-ready power delivery.

Specifications (Final Drive, R180, LSD)

  • Gearbox Code: TY856 Series 6-Speed Manual
  • Final Drive Ratio: 3.70 (Optimized for Turbo EJ Powerbands)
  • Rear Differential: Heavy-Duty R180 with Factory LSD
  • Clutch Style: Pull-Type Clutch Assembly
  • AWD System: Symmetrical Full-Time AWD

Fitment — Legacy GT Spec B

This transmission is tailored specifically for boosted EJ-series engines. Check the fitment chart below for exact compatibility.

Year Range

Model

Engine Code

Fitment Type

Notes

2006–2009

Subaru Legacy GT Spec B

EJ255 2.5L Turbo

Direct Fit

Factory Spec Match

2005–2009

Subaru Legacy GT

EJ255 2.5L Turbo

Direct Upgrade

Includes R180 Rear Diff

2004–2008

Subaru Forester XT

EJ255 2.5L Turbo

Custom Swap

Requires Axle Adjustments


Tested & Ready to Install

Every gearbox shipped out by DMV JDM Depot undergoes extensive mechanical checks. Sourced from Japan with 55,000 to 65,000 miles, this unit is prepped for action.

  1. Bench Tested: Verified gear rotation through all 6 forward gears and reverse.
  2. Fluid Clean Check: Inspected drain plug magnet for metal debris or signs of severe wear.
  3. Housing Inspection: Inspected mounting tabs, bellhousing threads, and casing seals.

What’s Included & Installation Notes

This is a complete drivetrain package designed for enthusiasts who want maximum performance:

  • Package Contents: 6-speed manual gearbox + matching 3.70 final drive R180 LSD differential.
  • Sensor Transfer: You must reuse your original neutral safety and reverse sensors from your old transmission.
  • Seal Replacement: Replace your front input shaft seal and rear tail-shaft seal prior to installation.
  • Drivetrain Alignment: Ensure your propshaft matches the 3.70 R180 flange interface.

Why Buy From DMV JDM Depot?

We take the stress out of ordering imported performance car parts. When you shop with DMV JDM Depot, you get top-tier JDM gear without the mystery.

  • 30-Day Warranty: Standard 30-day coverage protects against major internal defects.
  • Same-Day Dispatch: Fast freight processing shipping right to your door in the lower 48 states.
  • FIT Verification: Send us your VIN to confirm gear ratios before shipping out.

Browse our entire Subaru Transmissions library or check the general JDM Transmissions collection. Need the 3.90 ratio EZ30 engine version? See our Subaru Legacy/Outback Spec B 6-speed (3.90 / EZ30). Learn more with our post on How to Inspect a Used Engine/Transmission Before You Buy.

Frequently Asked Questions

Will this 6-speed fit my Subaru Legacy GT Spec B?

Yes, it is a direct bolt-on swap for turbo EJ-series Legacy GT and Spec B models.

Does it include the R180 rear differential and LSD?

Yes, this complete bundle comes with the high-performance R180 rear diff featuring a mechanical LSD.

Is the final-drive ratio 3.70 or 3.90?

This specific Legacy GT unit features the factory-correct 3.70 final drive ratio for longer gears and higher top-end speeds.

Is this a JDM used transmission, and what mileage does it have?

It is an imported JDM transmission with approximately 55,000 to 65,000 original miles.

What's the difference between this GT Spec B unit and the Outback/3.0R 6-speed?

The GT Spec B uses a 3.70 final drive meant for turbo EJ motors, whereas the Outback/3.0R uses a 3.90 ratio.

 

Shipping Policy

At a glance

  • Before 1pm EST orders ship the same business day under normal circumstances
  • 48 lower states we ship to; contact us first for Puerto Rico, Alaska, Hawaii and Virgin Islands
  • Liftgate surcharge for residential tailgate / liftgate on freight class items

 

Shipping price is calculated according to shipping map.

Exception: Brooklyn, Bronx & Long Island, NY - Business Address $350, Residential Address $450

Residential Liftgate/Tailgate Service

Residential Tailgate / Liftgate services for freight class items have a surcharge. Please check the appropriate box when calculating shipping while purchasing an item otherwise the shipment will be delayed.

When We Ship

  • Under normal circumstances we ship the same business day on all orders placed before 1pm Eastern Standard Time.
  • Orders placed after 1pm Eastern Standard Time will be shipped the next business day.
  • Out of stock items will be shipped 1 business day after stocking. No price adjustment will be made for the shipping charges as these items will still be shipped according to the method originally requested in the purchase order.
  • You will be notified within 1 business day by email if we are unable to complete your order.
  • Please call our Customer Service at (410) 565 6314 if you have questions regarding this policy.

Where We Ship

  • We only ship to the address on file.
  • We ship to all 48 lower states of the United States of America.
  • For shipments to Puerto Rico, Alaska, Hawaii, and Virgin Islands, buyers should contact us before making the purchase.

Tracking number

A valid tracking number will be emailed after shipping.

Returns

The customer is responsible for all the freight charges on the return of defective items and no replacement part will be sent until our staff have inspected and verified the returned defective item in question.

The customer is responsible for all the shipping charges for the returned product. Please include the invoice with your returned package.

More on our Return Policy page.

Warranty & Sales Policy

At a glance

  • 180 days on new engines and transmissions
  • 180 days on remanufactured engines and transmissions
  • 90 days on used replacement engines and transmissions
  • 30 days on used performance engines and transmissions

Unless otherwise specified on the sales receipt.

SHIPPING COSTS AND LABOR COSTS ARE NOT COVERED UNDER WARRANTY! NO EXCEPTIONS!

WARRANTY OFFERED BY DMV JDM Depot

New Engines & Transmissions 180 Days
Remanufactured Engines & Transmissions 180 Days
New Performance Engines & Transmissions 90 Days
Used Replacement Engines & Transmissions 90 Days
Used Performance Engines & Transmissions 30 Days
Rotary Engines (Mazda RX-7, Mazda RX-8, 13B, 13BT/13BTT/20B) No Warranty

Unless otherwise specified on the sales receipt.

Parts sold as is!

ITEMS AND CONDITIONS COVERED BY THE LIMITED WARRANTY

  • All internal engine parts including pistons, piston rings, piston pins, crankshaft, and main bearings, connecting rods and rod bearings, camshaft and camshaft bearings, timing chain and timing gears, intake and exhaust valves, valve springs, seals, guides, oil pump, push rods, rocker arms, and shafts. The engine block, cylinder walls, and cylinder head are also warrantied to be free of deep cracks or distortions that would otherwise render the engine incapable of operating under the original manufacturer's intended use of the product. The same applies to all internal accessories listed above.
  • DMV JDM Depot reserves the right to perform maintenance procedures including servicing and repairing their products prior to listing an item for public sale. This includes but is not limited to, using parts that are remanufactured, serviceable used parts or even exchanging the engine under the company's own discretion and determination if deemed necessary or otherwise detrimental to the original motor in its unmodified state.

ITEMS NOT COVERED UNDER WARRANTY

  • All external parts attached to the engines, e.g., intake and exhaust manifolds, carburetors, distributor, starter, emission control devices, flywheel, clutch and pressure plate, water pump, thermostat, belts, hoses, oil pan, valve cover, sensors, electronic parts(distributor, wires, Computers, injectors, etc.), drive shafts, engine mounts, half shaft, turbo(s), etc.
  • DMV JDM Depot reserves the right to refuse any claim regarding used motors that seize, lose critical amounts of compression, or suffer any other catastrophic failure during the warranty period due to negligence of the customer, or the customer’s mechanic. Used engines should always be monitored closely within the first 50 to 100 miles after installation to ensure that all components are functioning properly.
  • If the engine was installed by a certified mechanic, it is the mechanic’s responsibility to ensure that the engine is in good condition before releasing the vehicle to the customer. Professional installation is always recommended. For all warranty claims on our engines or transmissions, we require a valid Mechanic’s report, although this cannot override our warranty terms and discretion. We encourage the mechanic to contact us with any questions during the installation if he or she is unfamiliar with installing JDM replacement motors. Failure to install an engine through a certified mechanic or registered professional medium may result in voiding the warranty at the discretion of DMV JDM Depot.

Defective Product Claim Procedure

In the unlikely event of a Head/Block/Transmission being defective, we will require the following to be emailed to us:

  • DMV JDM Depot will require a detailed written description along with pictures and videos of the described defective part from a Certified Mechanic ONLY.
  • A copy of the Mechanic’s certification along with his/her contact information must be provided. DMV JDM Depot will contact the Certified Mechanic to ensure that the documents are legitimate. The Certified Mechanic may not be the individual who bought the engine from DMV JDM Depot. You may email the required paperwork to sales@dmvjdmdepot.com
  • Once the required paperwork is emailed, we will make a decision on whether we will provide a refund for the damaged part(s) only or request for the engine/transmission to be returned for a replacement. Shipping charges nor labor are covered under warranty. You must return the defective engine/transmission completely with no parts missing. If parts are missing, those parts will be removed from the replacement engine/transmission prior to being shipped.

If you have any questions or concerns regarding this warranty or any other type of questions, please feel free to contact us via email at sales@dmvjdmdepot.com or via telephone at (410) 565 6314.

DMV JDM Depot reserves the right to change or modify this warranty at any time without prior notice.