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XAT Racing 1UZ W58 W-Series Transmission Adapter for UZ Engines W55 W56 W59 2UZ 3UZ

XAT Racing 1UZ W58 W-Series Transmission Adapter for UZ Engines W55 W56 W59 2UZ 3UZ


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XAT Racing
  • $485
In stock(50 items available)

This is it people! This kit is custom made in-house with CNC design and manufacturing! Comes with the T56 Hydro-throwout for a zero fuss install. The kit comes complete including adapter plate, release bearing, and release bearing adapter kit. Stainless fittings are provided to attach your custom made clutch line, making for a zero fuss install. This allows the use of the W58 or W55 transmission with your 1UZFE V8 swap, OR the addition of a 5 speed to your SC400 or GS400! 

If you have the G series transmission send us an email and we might have a setup for you as well! 

As a quick recap: You will need the UZ V8 automatic bellhousing with this kit (U1 or U2 from the 4 speed and 5 speed autos. 3UZ 6 speed bellhousing will not fit). You can use our "OEM style" or 12 lb chromoly flywheel with these kits if you plan to use a single disc clutch. Single disc clutches will need to be an SW20 MR-2 turbo. 

We also have twin disc QuarterMaster clutches (7.25" twin and 8.5" twin disc) and flywheels that can be made for this setup. We include the OEM T56 throw out bearing with this kit as an option. Our twin disc kits use a QMI throw out bearing instead. You can expect to break your W series tranny before you make enough power that requires a twin disc, however we have updated our plate to have an optional quill tube for mounting the twin disc!

The kit will utilize the OEM auto bellhousing so perfect fitment is guaranteed! You will use the OEM bellhousing fasteners as they fit flawless and work great.

You may also need other manual conversion parts, depending on your chassis. Please keep in mind you WILL need to use a 3/4" bore master cylinder with this kit. The factory master cylinder may be enough, however it will ultimately depend on your application. The majority of Toyota car manuals have a 5/8" bore master. The optional master cylinder we provide may require further chassis modification to bolt up to your firewall.


  • We don't use aluminum ring gears. I can't think of a single OEM that has used an aluminum ring gear in a production car before. For long term reliability, we use actual OEM hardened steel ring gears on our flywheels
  • No starter/plate shimming. Our plates are all billet CNC'd, so each one is exactly the right length. No guessing and fumbling, just correct, proven, and tested fitment.
  • Starter bolts do not need to be shortened or clearanced in any way
  • We've been selling our kits for the better part of a decade and invested heavily in support and upgrades for these underrated engines
  • Solid customer service before, during, and after purchase. 
  • We don't use "proprietary" clutch/flywheel replacement parts. Guess what...neither does our competition! They will tell you that to make sure you keep coming back though.
  • We run XAT Racing full time. This isn't just a side hustle for us, it's our passion!
  • Quality, OEM parts used where possible. We avoid using inexpensive garbage just to get a sale and maximize profit. Every individual part and fitting is specifically chosen to be proven and solidly reliable.

Bleeder Kit Options:

We also offer a bleeder line kit to make life much easier, instead of being stuck with having the bleeder fitting inside the bellhousing. This includes the fittings needed for a -4 AN setup to convert to. In most cases, the 10" line will be enough, but opting for something like the 36" line will give you the freedom of running the line anywhere. Anyone who has done the hydraulic bleeding process for brakes or clutch line on their back on the ground will agree that having it mounted in the engine bay instead with a quick twist makes life much easier!

Clutch Hydraulic (Feed) Line:

Typically, the clutch hose for most applications should be 36" in total length (3 feet, about 1 yard/1 meter roughly). We can supply custom hoses with custom lengths as well, but for the majority of applications, 36" fits fine. We also offer 48" hose just in case you feel your project needs an additional foot of length. The one we use with almost all builds has a 90* fitting on one end (to bolt to the banjo bolt fitting from this kit), and the other a straight fitting. Please contact us if you have a specific length you're looking for. We try to stock a variety of options for our customers, but keep in mind that some custom setups may require a bit extra time to ship.

The banjo bolt we use is M10 x 1.0 for most popular Japanese applications, including most Toyotas and Nissans. Please keep in mind that most Japanese master cylinders are about 5/8" bore diameter, and this kit does require a 3/4" bore master.

The main picture with the hardware supplied and included with the kit shows where all of the hardware goes. The outer bellhousing bolts include nuts for additional holding, which of course go on the back side. The tiny screws in the middle are for mounting the throw out bearing in place, as it should not spin


    • SKU
    • Weight
      8 lbs
  • Manufacturer
    XAT Racing
  • Throw Out Bearing and Fittings
    Add TOB and fittings for single disc clutch, XAT Twin 7.25" or 8.5" Kit (needs low profile TOB), No thanks
  • Flywheel for Single Disc Clutch
    Yes, OEM style (20 lbs), Yes, Lightweight Chromoly (12 lbs), Yes, Chromoly plus new OEM bolt guide (12 lbs), Yes, lightweight aluminum (9 lb), No thanks
  • Pressure Plate Bolts
    Yes, XAT Grade 10.9, Yes, ARP, No
  • Clutch Bleed Line Kit
    Yes, 10" hose, Yes, 16" hose, Yes, 24" hose, Yes, 36" hose, No thanks
  • Clutch Feed Line Kit
    Yes, 36 inches (most common fitment), Yes, 48 inches, No
  • Clutch Options
    XAT Racing Stage 2, Exedy OEM Replacement (ships separately), Exedy Stage 1, Spec Stage 1, ACT Stage 1, Exedy Stage 2, Spec Stage 2, ACT Stage 2, Spec Stage 2+, Spec Stage 3, Spec Stage 3+, Spec Stage 4, No thanks
  • ATEMU for 1998+ vehicles
    No, Yes (ships separately)
  • Master Cylinder 3/4" Bore (required
    OEM Cruiser, Remote mount Wilwood, Wilwood with A70 Supra LHD adapter, Tilton kit for A80 Supra/IS/SC etc., No
  • ARP Flywheel Bolts
    Yes!, No
  • Pilot Bearing
    Yes!, No

Most product ships from either the manufacture or largest wholesale location to pass the saving to you. Most orders will ship via UPS, as we will be able to provide the best rates and have had the least issues when using UPS.

IF YOU DO NOT LIKE THE AUTOMATED SHIPPING CALCULATOR'S RATES, PLEASE CONTACT US AND WE CAN GET YOU A BETTER ONE! Especially for anyone outside the USA, please contact us with a list of parts you'd like to order, and where you are located.

We accept the following payment methods:

Also Venmo and unmarked nonsequential dollar bills

  • Fitment Type
    Vehicle Specific
Toyota/LexusCentury1997-2017 GZG501GZ-FE 5.0 V12 VVTi
Toyota/LexusCrown Majesta1995-1999 S1501UZ-FE 4.0 V8 (UZS151, UZS155, UZS157)
Toyota/LexusLexus GS/Aristo1992-1997 S1471UZ-FE 4.0 V8 non-VVTi
Toyota/LexusLexus GS/Aristo1998-2005 S1601UZ VVTi 4.0 V8 (1998-2000) UZS160
Toyota/LexusLexus GS/Aristo1998-2005 S1603UZ 4.3 V8 (2001-2005) UZS161
Toyota/LexusLexus LS/Celsior1989-1994 UCF10/11 LS400/Celsior1UZ-FE 4.0 V8 non-VVTi
Toyota/LexusLexus LS/Celsior1995-1997 UCF20/21 LS400/Celsior1UZ-FE 4.0 V8 non-VVTi
Toyota/LexusLexus LS/Celsior1998-2000 UCF20/21 LS400/Celsior1UZ-FE VVTi 4.0 V8
Toyota/LexusLexus LS/Celsior2001-2005 UCF30 LS430/Celsior3UZ-FE 4.3 V8
Toyota/LexusLexus SC/Soarer1992-2000 Z301UZ-FE non-VVTi 4.0 V8 (92-97) UZZ30/31/32
Toyota/LexusLexus SC/Soarer1992-2000 Z301UZ-FE VVTi 4.0 V8 UZZ30 (1998-2000)
Toyota/LexusLexus SC/Soarer2001-2010 Z403UZ-FE 4.3 V8
Toyota/LexusTundra2000-2006 1st Gen2UZ-FE 4.7 V8
Toyota/LexusTundra2007-2021 2nd Gen2UZ-FE 4.7 V8

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