JDM Subaru Impreza WRX STi GRB 6speed DCCD 3.9 Transmission LSD Differential Starter 2008-2014 # TY856UB1KA

Description

Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

Buy JDM Subaru Impreza WRX STi GRB 6-Speed DCCD 3.9 Transmission LSD Differential Starter 2008–2014 #TY856UB1KA Online

The JDM Subaru WRX STi GRB TY856UB1KA 6-speed DCCD 3.9 transmission (2008–2014) is one of the most respected gearboxes in Subaru’s performance history, known for its strength, precision, and advanced technology. Designed to handle the power and torque of the EJ25 turbo engine in the GRB WRX STi, this gearbox comes equipped with Driver Controlled Center Differential (DCCD), a 3.9 final drive, and a robust limited-slip differential (LSD) that together deliver legendary all-wheel-drive grip and control. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

When you purchase this transmission from jdmcarpart.com, you’re not just buying a gearbox; you’re investing in a direct-import, compression-tested, and inspected unit with low Japanese mileage (40,000–60,000 km). Every TY856UB1KA unit is carefully prepared, packaged securely, and shipped globally with insured freight and warranty support, ensuring you can install with confidence. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

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Subaru TY856UB1KA Transmission Overview

The TY856 family of transmissions is synonymous with Subaru’s high-performance STi lineup, and the UB1KA variant found in the GRB STi is one of the most advanced. Its 6-speed manual layout, combined with DCCD and limited-slip differentials, makes it perfect for aggressive driving, track use, rally stages, or high-powered builds that demand durability. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online.

Core Specifications:

• Transmission Code: TY856UB1KA
• Type: 6-speed manual (close ratio)
• Application: Subaru Impreza WRX STi GRB (2008–2014)
• Differential: Mechanical & electronic Driver Controlled Center Differential (DCCD)
• Final Drive Ratio: 3.9
• Front Differential: Helical LSD
• Rear Differential: R180 LSD
• Strength: Handles 400–500 WHP in stock form
• Included: Transmission, starter motor, shifter assembly, and LSD differential (varies by package). Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

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Why the JDM 6MT is Legendary

1. Unmatched Strength: Built to handle high torque loads and aggressive launches.
2. Close-Ratio Gearing: Ensures rapid acceleration and keeps the EJ25 in boost.
3. DCCD Technology: Allows the driver to fine-tune torque distribution front-to-rear.
4. LSD Differentials: Both front and rear for maximum traction and cornering stability.
5. Longevity: Designed to last even under racing or rally conditions. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online.

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Driving Benefits

The TY856UB1KA isn’t just a gearbox — it’s the backbone of Subaru’s motorsport heritage.

• On the Street: Smooth, precise shifts with daily drivability.
• On the Track: Aggressive gear ratios keep you in the powerband.
• In Rally: DCCD + AWD grip ensures stability on gravel, tarmac, and snow.
• For Builders: Strong enough for high-powered EJ25 or EJ207 swaps. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

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Fitment & Applications

The TY856UB1KA 6-speed transmission is a direct fit for:

• 2008–2014 Subaru WRX STi GRB

It can also be adapted to:

• Subaru WRX (with conversion kits)
• Subaru Legacy / Forester performance swaps
• Kit cars and AWD conversions. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

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Pre-Installation Recommendations

To guarantee long life and reliability:

• Replace clutch, flywheel, and throw-out bearing
• Refresh transmission fluid with Subaru Extra-S or Motul Gear 300
• Inspect seals, synchros, and bearings
• Confirm compatibility with your rear differential ratio
• Update bushings for shifter and mounts. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

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Why Enthusiasts Choose JDMcarpart.com

• Authentic JDM Imports: Direct from Japan, low mileage, not US salvage. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online
• Compression & Spin Tested: Verified for gear integrity and smooth operation.
• Global Shipping: Palletized and insured delivery worldwide.
• Warranty Backing: 30-day startup warranty on transmission internals.
• Technical Support: Guidance for installation, wiring (DCCD), and swaps. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

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Performance Potential

With upgrades such as a twin-disc clutch, stronger mounts, and proper fluids, this gearbox can withstand over 500 WHP. Many rally and drift teams rely on the TY856 for its bulletproof reliability and DCCD flexibility. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

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Shipping & Warranty

• Worldwide Shipping: Palletized, shrink-wrapped, insured freight.
• Warranty: 30-day startup warranty against internal defects.
• Support: Technical advice available for swap projects. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

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10 Frequently Asked Questions (FAQs)

1. Is the TY856UB1KA a direct fit for my GRB WRX STi?
Yes, it’s designed specifically for the 2008–2014 GRB WRX STi.

2. What’s the final drive ratio?
This transmission uses a 3.9 final drive. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

3. Does it come with the rear differential?
Yes, the R180 LSD rear diff is typically included.

4. What power can this handle?
Stock form supports ~400–500 WHP reliably.

5. Does this include the DCCD system?
Yes, it includes DCCD with mechanical + electronic control.

6. Can I use this in a WRX or Legacy?
Yes, with conversion kits and proper rear diff matching.

7. What mileage do these gearboxes usually have?
Most JDM imports come with 40,000–60,000 km. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online

8. Is it tested before shipping?
Yes, all transmissions are spin-tested and inspected.

9. Do I need to replace fluids before use?
Yes, always use fresh Subaru Extra-S or equivalent.

10. Why buy from jdmcarpart.com?
Because we supply authentic, tested, low-mileage JDM transmissions backed by warranty and shipped globally. Buy JDM Subaru WRX STi GRB TY856UB1KA 6MT Online